—Look, the paint is starting to come off ______ the wall is damp.
—Well, we’d better have the wall repainted some day.
A. when B. once
C. if D. where
We believe the time and hard work _______ in completing such an important project are worthwhile.
A. involved B. involving
C. to involve D. to be involved
Anyone be in a rough life time, whether he is “Bai Fumei” or “Gao Fushuai.”
A. must B. will
C. can D. should
—Why not find a new job?
—Why should I? I _____ as much, but I like what I'm doing.
A. didn't earn B. don't earn
C. hadn't earned D. haven’t earned
Mom, don’t you think it's OK to play once in a while it doesn’t affect my studies?
A. even if B. unless
C. so that D. as long as
The scientist spent years alone in the forest, ______ by eating wild fruit and small animals.
A. surviving B. survived
C. to survive D. having survived
