第1题: [单项选择]"May I speak to your manager Mr. Williams at five o' clock tonight " "I'm sorry. Mr. Williams ______ to a conference long before then." A. will have gone B. had gone C. would have gone D. has gone 参考答案:A 答案解析:根据题意,可见before then相当于before five o’clock tonight,表示的是在将来某个时间之前要完成的动作,因此此处谓语动词要使用将来完成时。例如:The railway
第14题: [单项选择]The U.S was in 1850 a (divided) nation half slave and half free. A. allied B. combined C. united D. separate 参考答案:D 答案解析:separate“分开的,单独存在的”;divided“分开的、分离的”,着重指把某物按一定比例加以划分。ally“使结盟”;combine“结合”,一般和with连用;unite“统一,团结”。本题