1. Turn off the lights when you leave the classroom.
-> turn off = don't turn on
2. This book is the least interesting book I have ever read.
-> S have/has VPII.
3. John said he was going to work for a new company the next week.
-> S said that S V(lt)
4. Jim asked his teacher when he should register for the new course on Chinese.
-> S asked O wh- S V(lt)
5. Mary said that her close friend and she had had a quarrel the previous week, so she had felt sad.
-> S said that S V(lt)
6. Because Lan was illl, she didn't go to Dong Ho village with her friends.
-> because : bởi vì
7. As soon as I have finished my work, I'll give you a call
-> As soon as HTHT, TLĐ
8. The children are looking forward to visiting Hue next week
-> be looking forward to Ving
9. My brother is much shorter than my father
-> S1 tobe adj-er than S2.
10. We are looking forward to seeing you again
-> be looking forward to Ving