1/The burglar escaped , and then the police arrived.
-->Before .......................................
2/Before he went to shool , he had ironed his clothes.
-->First...............................................
3/ He had hardly left the office when the telephone rang.
-->No sooner...................................................
4/I had only just put the phone down when the boss rang back.
-->Hardly................................
5/As soon as I got into the bath , someone knocked at the door.
-->No sooner.............................
6/Just as she put the phone down, it rang again.
-->Barely...............................................
7/He got down to writing the letter as soon as e returned from his walk.
-->No sooner............................................
8/ She had hardly begun to speak before people started interrupting her .
-->Hardly...................................
9/Sam played tennis yesterday and it as his first game.(never)
-->...............................
10/Sam is playing tennis now and it is his first game.(never)
-->.................................................
11/How long is it since they went to Nairobi?(When)
-->..........................................
12/Mac Kenzie wrote four best-sellers before he was twenty. (By the age )
-->...................................................
13/Alice made an appointment, and went to see the doctor.
-->After.......................................................
( Mong mọi người giải dùm với, và có thể giải thích đính kèm theo đc ko ạ . CẢM ƠN MỌI NGƯỜI TRC )
1. He had dinner before he went out to play with his friend.
After he had had dinner, he went out to play with his friend.
2. Mary finished her homework before we arrived.
When we arrived, Mary had finished her homework
3. After he had had a bath, he ate his dinner.
Before he ate his dinner, he had had a bath
4. Daisy went home before I arrived.
When I arrived, Daisy had gone home
Bài này chỉ cần xác định rõ hành động nào xảy ra trước ta đưa vào thì quá khứ hoàn thành, còn cái hành động xảy ra sau đưa vào thì quá khứ đơn là đc