问题
选择题
All but Tom ___that film before.
A．has been
B．have seen
C．must see
D．had seen
答案
答案：B
all 是主语，而不是Tom, 此处all指所有的人，不谓语动词用复数。
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All but Tom ___that film before.
A．has been
B．have seen
C．must see
D．had seen
答案：B
all 是主语，而不是Tom, 此处all指所有的人，不谓语动词用复数。
