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1. At the moment we (sit) .........are sitting..................... in a cafe. We (wait) .....are waiting................ for the museum to open, so I (write) ...............am writing............. some postcards.
2. Miss Helen (help) ..............will help............... as soon as she (finish) ........finishes..................... that letter.
3. Boys (play) .......to play...................... marbles or catch while girls enjoy (skip) .......skipping....... rope or chatting.
4. (you/ go) ...................Will you go.................. abroad for your holiday? - Well, I (get) .........will.get......... a holiday job. I’m going to an agent’s on Saturday (find out) .........to find out.................. about it.
Còn lại thì chịu :D

1. It is twenty past seven.
2. Let's go for a walk !
4. Vietnamese students have not as vacations as American ones.
5. What a boring party !

We couldn't go there on time because of the bad weather.
=> The weather was bad so I couldn't go there.
“What should I do in such cases?” she said.
=>She wondered what she should do in such cases.
We have to do a lot on homework after school.
=>A lot of homework after school to do.
15. He had Mr Ba redecorate his the living room last week.
=>He got Mr Ba to redecorate his the living room last week.

chuyển từ CĐ sang BĐ
1. They may send the man to prison.
=>THE MAN MAY BE SENT TO PRISON
2. Some one is cutting the grass now.
=>THE GRASS IS BEING CUT NOW
3. The publisher published his book in 1996.
=>HIS BOOK WAS PUBLISHED BY THE PUBLISHER IN 1996
4. Someone ought to repair this window.
=>THIS WINDOW OUGHT TO BE REPAIRED

28.Last night, don’t forget (eat) ______eating___________ a lot of sweets.
29.She (teach)________taught_________ English my class one year ago.
30.They (see) ____see____________ sharks, dolphins and many diffent type of fish.
31.I (have) ___had_____________ lunch at foodstall last night.
32. I ( start )................started................................ school when I was six.
33. We ( meet )....................meet........ his parents yesterday.
34. The school ( be ) ........was.................in bad conditions three years ago.
35.....Did.............. Your aunt ( call )......call............ you yesterday?
36. He ( not visit ) ..................didn't visit.......................Da Lat last summer.
37. I (go) ……went………………… to school yesterday.
38. Nam and Ngoc (study) ………are studying……………………….. Math now.
39. Keep silent ! I (listen )____am listening________________to the radio.40. __are____________ you (play)____playing_____________badminton now?41. Hoang (prace) ..praces...........................................speaking English every day
42. She (be).....was................................................. late for school.
43. She (get) …got…....................................…….up early yesterday.
44. Look! The children (sleep)…………are sleeping……………………………………...
45. After John (wash)…had washed……………………….. his clothes, he began to study.
46. We (study)………studied… ………………….. a very hard lesson the day before yesterday.
47. It often (rain) rains…………….in summer.
48. The students (look up)............are looking up........................................... that new word right now.
9.Correct the mistaken prepositions in the following sentences. (Sửa các giới từ bị dùng sai trong các câu sau đây.)
1. I like the red scarf at -> on the shelf over there.
2. Nam left his watch in -> on the sofa.
3. The music festival ends on -> at 10 p.m.
4. She lives on -> in a small flat over there.
5. He always get up late in -> on Monday morning.
6. My birthday is at -> in two weeks.
7. This house was built on -> in the 19th century.
8. We usually give gifts each other on -> at Christmas.
9. There are lots of interesting activities in -> on New Year's Day.
10.We might live on the Moon at -> in fifty years.
1. I like the red scarf at the shelf over there. …at => on………………à…………………
2. Nam left his watch in the sofa. ……in => on……………à…………………
3. The music festival ends on 10 p.m. ………on => at…………à…………………
4. She lives on a small flat over there. ………on => in…………à…………………
5. He always get up late in Monday morning. ………get => gets…………à…………………
6. My birthday is at two weeks. …………at => in………à…………………
7. This house was built on the 19th century. …………on => in………à…………………
8. We usually give gifts each other on Christmas. ………on => at…………à…………………
9. There are lots of interesting activities in New Year's Day. …in => on………………à…………………
10.We might live on the Moon at fifty years. …………at => in………à…………………