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17. The state laws limit the speed ____________ motorists are permitted to drive.
A. at which B. which C. that D. where

18. It is important to ____________ the wonder of the world for the future generation.
A. destroy B. ignore C. remain D. preserve

19. She is far too ____________ to be in charge of all those children.
A. disresponsible B. irresponsible C. responsible D. irresponsible

20. Jane really loves the ____________ that her parents gave her as a birthday present.
A. wooden brown nice jewelry box B. nice wooden brown jewelry box
C. nice brown wooden jewelry box D. brown wooden nice jewelry box

21. I read the contract again and again ____________ avoiding making spelling mistakes.
A. in terms of B. with a view to C. by means of D. in view of

22. What do you think about the parks in New York? Are they larger ____________ in Ho Chi Minh City?
A. than those B. than that C. as that D. as those

23. Robots save workers from ____________ dangerous tasks.
A. making B. having C. performing D. carrying

24. If you had listened to my advice yesterday, you ____________ in this mess right now.
A. would be B. would have been C. would not be D. would not have been

25. If ____________, that tree would look more attractive.
A. it did carefully B. it is done carefully C. it was done carefully D. it is done carefully