問題詳情

40. Something ________ to George to make him behave in such a strange way.
(A)should happen
(B)must have happened
(C)may be happened
(D)was happened

參考答案

答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

用户評論

【寂寞行星】評論

could, may / might , must, should, would 這些助動詞加完成式 have p.p. 的話全部都是在指過去的事情, 而且幾乎都是一種 ”放馬後炮” 的意思must have p.p. 則是 ”(當時/之前) 一定是...” 的意思特別注意這裡的 must 不是 ”必須” 的意思了像: He fell asleep while he was driving. He must have been very tired.(他開車時睡著了. 他當時一定是很累...

【zhen】評論

這句是什麼意思