Question

The doctor will not permit him _____ until his foot is better.

A．walk

B．to walk

C．walking

D．walked

Answer 1

B

试题分析：句意：医生直到他的脚好些了才会允许他走。这里使用permit sb. to do sth.允许某人做某事.用不定式做宾语补足语。所以选B。