It is by no means clear the president can do to end the strike.A.howB.whichC.tha
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It is by no means clear the president can do to end the strike.
A.how
B.which
C.that
D.what
试题答案
D
考察形式主语句。It是形式主语，真正的主语是后面的what the president can do to end the strike, what引导起这个主语从句，并且作为do的宾语。句意：总统能够做什么来制止罢工一点也不清楚。故D正确。