I’m really tired of Tom because he keep asking silly questions. A. canB. willC. mustD. w

问题补充：

I’m really tired of Tom because he keep asking silly questions.

A. can

B. will

C. must

D. would

答案：

A. can

B. will

(答案→)C. must

D. would

解析： 考察情态动词用法。A能够，可能；B将会；C一定；非得；偏偏；D会；句义：我真的厌倦了Tom，因为他非要问一下愚蠢的问题。根据句义说明C正确。