Scientists say it may be five or six years _____ it is possible to test this medicine on human patients.
A.since | B.after | C.before | D.When |
The students of Class Two said that they had no difficulty ___ those sentences into English.
A.to put | B.of putting | C.for being put | D.in putting |
The ship, ___ 1500 passengers , set off on its first trip on a cold winter day.
A. carriedB, carryingC. to carry D. being carried
Do you know if she is going __ him?
A.to mary with | B.to marry to | C.to marry | D.to marry of |
---Do you mind buying some fruit for me? --___. I’ll be happy to help you.
A.No, I don't | B.Yes, I do | C.Not at all | D.both A and C |
--Hello, is Mr. David in? ---_____.
A.Who's calling | B.Who are you | C.I’m David | D.Are you Lucy? |