问题
选择题
Sandy could do nothing but _____ to his teacher that he was wrong.
A．admit
B．admitted
C．admitting
D．to admit
答案
答案：A
考查介词but 用法，but前的动词是do /does/did，but后的动词要用原形动词，所以选A。
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Sandy could do nothing but _____ to his teacher that he was wrong.
A．admit
B．admitted
C．admitting
D．to admit
答案：A
考查介词but 用法，but前的动词是do /does/did，but后的动词要用原形动词，所以选A。