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1. weren't
2. wasn't
3. Was
4. was
5. was
6. Were
7.was
8. Were
9. wasn't
10. was
11. Was; wasn't
12. were; were
13. Were; weren't
14. Was; was ( còn ghi thiếu nha)
15. was, am
16. is; was
17. are ( thiếu giới từ)
18. was
1, mom and dad .....weren't ......( not be ) at home yesterday. they...were..... ( be) at the hospital
2, the weather.....was ...( be ) nice. it...wasn't.....( not be ) windy and rainy
3, .....Was...... (be) he free all day yesterday?
4, when...were .....(be) you born
5, he ....wasn't....(not be) at school. he was at home
6, were you busy yesterday? yes, i....was.....
7, ......was.....it cold last night? no, it....wasn't......
8, where....were.... they on sunday? they....were....at the store
9, .....were..... Nina and Sam strong this morning? no,they...weren't.....
10, ......was....... Sam ill last night? yes,he....was.....
Ex 2 . Change these sentences into negative and interrogative form
1, she was tired last night =>..........she was't tired last night..............
2, i was in London last month => .....i wasn't in London last month......
3, they were at Nina's house yesterday =>............they weren't at Nina's house yesterday ..........
4, she was with him yesterday =>...............she wasn't with him yesterday...........................
5, tom was at school last monday =>..............tom wasn't at school last monday...........................
HỌC TỐT 
Ex 1 . write the correct past simple tense of tobe
1, mom and dad ......weren't.....( not be ) at home yesterday. they....were.... ( be) at the hospital
2, the weather...is.....( be ) nice. it....isn't....( not be ) windy and rainy
3, .....Was.... (be) he free all day yesterday?
4, when....was....(be) you born
5, he ...wasn't.....(not be) at school. he was at home
6, were you busy yesterday? yes, i.....was.....
7, .......was...it cold last night? no, it...wasn't.......
8, where.....are... they on sunday? they....are....at the store
9, ...are....... Nina and Sam strong this morning? no,they.....aren't...
10, ......Did....... Sam ill last night? yes,....she did.....
Ex 2 . Change these sentences into negative and interrogative form
1, she was tired last night =>........She wasn't tired last night.......................................
=> Was she tired last night?
2, i was in London last month => ............I wasn't in London last month..........................
=> Were you in London last month?
3, they were at Nina's house yesterday =>.............They weren't at Nina's house yesterday.....................................
=> Were they at Nina's house last night?
4, she was with him yesterday =>...........She wasn't with him yesterday...............................
=> Was she with him yesterday ?
5, tom was at school last monday =>..............Tom wasn't at school last Monday..........................
=> Was Tom at school last Monday ?
1. was
2. were
3. was
4. was
5. was
6. were
7. were
8. were
9. was
10. were
A. Complete the sentences with was or were.
1. I __was___ happy.
2. You __were__ angry.
3. She ___was___ in London last week.
4. He ___was___ on holiday.
5. It ___was__ cold.
6. We _____were_ at school.
7. You _were____ at the cinema.
8. They ____were_ at home.
9. The cat __was__ on the roof.
10. The children ___were__in the garden
was - were - was - was - was - were - were -were - was
1 went - drove - arrived - asked - said - told - walked - saw - stopped - bought - was
was - were - was - was - was - were - were -were - was
1 went - drove - arrived - asked - said - told - walked - saw - stopped - bought - was
1. He joined / was joining the company 25 years ago and he still works for us.
2. At this time last week, we lay / were lying on a beach in the sun.
3. What did they do / were they doing at 11pm last night - it was really noisy?
4. When I walked / was walking into the class, the teacher talked / was talking about the new course.
5. My parents have lived / were living in Berlin for ten years. They lived / were living that when the Berlin wall came down in 1999.
6. How many pictures did you take / were you taking while you travelled / were travelling around Ireland?
7. The Titanic crossed / was crossing the Atlantic when it hit / was hitting an iceberg.
8. As soon as I saw / was seeing the accident I called / was calling the police.
9. While Matt did / was doing his homework, his mother made / was making the dinner.
10. When the ambulance came / was coming, we carried / were carrying him into it.
11. We played / were playing a computer game when Mum called / was called for lunch.
12. When the teacher said / was saying “Stop!”, I still tried / was still trying to finish the last question.
Choose the correct option.
1. He joined / was joining the company 25 years ago and he still works for us.
2. At this time last week, we lay / were lying on a beach in the sun.
3. What did they do / were they doing at 11pm last night - it was really noisy?
4. When I walked / was walking into the class, the teacher talked / was talking about the new course.
5. My parents have lived / were living in Berlin for ten years. They lived / were living that when the Berlin wall came down in 1999.
6. How many pictures didyou take / were you taking while you travelled / were travelling around Ireland?
7. The Titanic crossed / was crossing the Atlantic when it hit / was hitting an iceberg.
8. As soon as I saw / was seeing the accident I called / was calling the police.
9. While Matt did / was doing his homework, his mother made / was making the dinner.
10. When the ambulance came / was coming, we carried / were carrying him into it.
11. We played / were playing a computer game when Mum called / was called for lunch.
12. When the teacher said / was saying “Stop!”, I still tried / was still trying to finish the last question.
1 Was it cold last night ? no it wasn't it was hot
2 He wasn't at school .He was at home