1.What is the reason of your coming home late?
2.He is known to have been in prison several times.
3.She cannot be used to studying every evening.
4.This is the first time we have visited the museum.
5.No sooner had he arrived than things went wrong.
6.I didn't do my exercise last night because I was tired.
7.When did you use the computer?
8.We lived here for fifteen years.
9.How about meeting inside the center, at the cafe corner?
10.Nam is trong enough to do heavy work.
II.
1.Last night the cashier was forced to hand over the money by the robber.
2.In 1897, when jack london was 21 years old, gold was discovered in alaska.
3.If Peter had woken up early,he wouldn't have missed the train.
4.This is the best computer I have ever used.
5.I asked Mary if she came from Sydney,Australia.