One possibility is that tears get rid of certain chemicals from your body _____ build up during stress.
A. to which B. that
C. where D. in which
No, I’m too busy right now. Please give me an hour, _____?
A. do youB. don’t youC. am I D. OK
Only after her mother came to help her for the first few months _____ to begin her propjet.
A. was she allowedB. she was allowed
C. did she permitD. she permitted
I didn’t know that he was a cheat, or else I ________________ him.
A. should have believed B. shouldn’t believe
C. wouldn’t have believed D. couldn’t believe
Investment by Chinese companies in the US _____ rapidly in recent years.
A. was growing B. has been growing
C. had grown D. will be growing
After starting work, Cao spent his evenings _____ in his books and was eventually admitted to a secondary technical school.
A. burying B. buried
C. being buried D. having buried
