问题
选择题
Nobody ______ to go into the laboratory without permission (允许).
A．allows
B．is allowed
C．promises
D．is promised
答案
答案：B
从句意来看,人是被允许的对象,所以应用被动语态.
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Nobody ______ to go into the laboratory without permission (允许).
A．allows
B．is allowed
C．promises
D．is promised
答案：B
从句意来看,人是被允许的对象,所以应用被动语态.