单选题
As Commander-in-Chief of the armed forces, I have directed that all measures______ for our defense.
A、
had been taken
B、
would be taken
C、
be taken
D、
to be taken
【正确答案】
C
【答案解析】
本题中，因为主句中谓语为 direct，要求宾语从句中谓语形式为“should+原形动词”，should 可省略。因此C项为正确答案。
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