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
詳解 (共 4 筆)
未解鎖
做阿摩題目總結出這種解法：should ...
未解鎖
must + 原V → 對現在或未來事件...
未解鎖
中文:喬治當時應該發生某種事情，使他表現...
未解鎖
強調肯定推測語氣 must+have+p...
阿摩線上測驗
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