9、I don’t know whether you happen ___ , but I’m going to study in the U.S.A. this September. A. to be heard B. to be hearing C. to hear D. to have heard 10、As the twentieth century came to a close , the raw materials for a great national litera...
过去将来进行时:( would be doing ) 例:The government promised that a new highway would be being built next July. 政府承诺说第二年7月将有一条新的高速公路正在修建。 15 过去将来完成时:(would have done) 例:I believed by the end of that year an advanced ...
④"be to do"的2种用法: a) 表示“按计划、安排即将发生某事或打算做某事”。 例:She is to be seen in the lab on Monday. 星期一你准会在实验室见到她。 b) 该做或不该做的事情(语气...
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