单选题 It was very difficult to build a power station in the deep valley, but it ______ as we had hoped.
A. came off B. went off. C. brought our D. made out

【正确答案】 A
【答案解析】该题测试词组的用法。come off表示“成功：结果是”：go off意为“离去，走掉”； bring out意为“使显出”；make out意为“辨别出；理解”。