——Do you know where David is?I couldn`t find him any-where.
——Well.He __ have gone far-his coat`s still here.
A.shouldn`t B.mustn`t C.can`t D.wouldn`t
答：C
譯：你知道戴維在哪里?我到處都找不到他.
喔,他不可能走遠(yuǎn)--他大衣還在這兒呢.
析：此題表示推測的情態(tài)動詞用法.shouldn't have done sth.表示“本不該做某事”（實際上做了）,mustn't 表示“禁止”,不能用于推測句.wouldn't have done sth.用于虛擬語氣,表示“如果.的話,就不會做了某件事情）,can't have done sth.表示“ 不可能做過某事”
Measures have been taken ___ the spread of the HIV.
A.arresting B.arrested C.to arrest D.for arresting
答：C
譯：已經(jīng)采取了一些措施來遏制艾滋病毒的蔓延.
析：take measures to do sth.的被動語態(tài).
表示目的,用不定式(in order/so as) to do sth.不用介詞for+動名詞,排除D.
查：arrest的用法之二：
2 阻礙,阻擋,妨礙,阻止,抑制 < (事物之) 進行、成長等>
the spread of the fire
阻止火勢的蔓延
the deterioration of the natural environment
阻止自然環(huán)境惡化