--Why does the lake smell terrible?
-- Because a large amount of water_______.
A. have polluted B. is being polluted
C. has been polluted D. have been polluted
As time went by, I eventually found Mary and I had ________.
A. in common a lot B. a lot in common
C. in a lot common D. a lot common in
He forgot to lock the door, _______of course, made things even worse.
A. who B. whom C. which D. what
_______, I don’t like him at all, but it’s strange that he should be so popular among the kids.
A. Fortunately B. Personally C. Lonely D. Totally
We should take some measures to______ wild animals______.
A. protect ; from being killed B. prevent; from killing
C. keep; being killed D. stop; from killing
There is just _______ much competition among countries to host the Olympics as ______ Olympic medals.
A. as ; to win B. as; winning C. so; to win D. so; winning
