第18题: [单项选择]Our picnic ______ by the unexpected heavy rain, we went home depressed. A. was spoiled B. had been spoiled C. having spoiled D. having been spoiled 参考答案:D 答案解析:非谓语动词题。该句的前半句使用的是独立结构,由于动作发生在过去,所以根据题意,应使用非谓语动词完成式的被动语态。
A. worked as a doctor by cleaning the medicine bottles B. met some doctors who were very friendly to him C. was interested in talking with patients D. remained together with the doctors 参考答案:D