It was not ________ she took off her glasses ________ I realized she was a famous film star．
A.when; that B.until; that
C.until; when D.when; then
Every year, ________ makes the most beautiful kite will win a prize in the Kite Festival.
A.whatever B.whoever
C.whomever D.whichever
(2016·天津)The manager put forward a suggestion __________ we should have an assistant. There is too much work to do.
A.whether B.that
C.which D.what
The speed of cars and trucks is _______ to 30 kilometers per hour in large cities in China.
A.limited B.limiting C.limit D.to limit
It suddenly _______ to me that we could use a computer to do the job.
A.took place B.happened C.occurred D.was occurred
—May I smoke here?
—If you _______, choose a seat in the smoking section.
A.must B.should C.may D.can
