There’s no way of knowing why one man makes an important discovery ________ another man, also intelligent, fails.
A.since B.if C.as D.while
The tourists were excited, for no sooner ______ the hotel ________ it snowed heavily.
A.they had returned; than B.had they returned; than
C.they had returned; when D.after they returned; as
After decades of effort, the city is still trying to _____ how to stop smoking in public places.
A.try out B.let out C.figure out D.run out
The father along with his children ______ solving word puzzles.
A.are like B.is like C.like D.likes
____________ with a difficult situation, the Chinese government is taking immediate measures to control the prices, which have been growing too quickly.
A.To face B.Having faced
C.Faced D.Facing
Did _______ ever occur to you that you would end up in prison if you continued behaving like that?
A.what B.which C.that D.it