Hearing the news, we did nothing but silently. A. to sit B. sat C. to be sitting
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Hearing the news, we did nothing but _____ silently.
A. tosit B.sat C. to besitting D. sit
试题答案
【答案】
D
【解析】考察固定用法。Do nothing but do sth除了做…之外无事可做；因为but前面有动词do的某种形式，使用省略不定式符号to.故A正确。