单选题 There was nothing they could do ______
A. but to wait B. only to wait
C. but wait D. unless they waited

【正确答案】 C

【答案解析】[解析] 本题考查固定搭配。do nothing but do“只有做…，除…之外什么也不能做”。句意为：他们除了等之外没有其他办法。