用表示时间的连词连接一个句子作状语,这样的主从复合句就是时间状语从句。连接时间状语从句的连接词有:when, before, after, while, as soon as, until, since... 这里要注意一点的是,如果主句是一般将来时,从句只能用一般现在时表示将来意义。 由when,while引导的时...
2. While I was doing my homework, my sister was reading a book. 当我做作业的时候,我妹妹正在看书。 3. When I met Lucy, she was doing exercise in the park. 当我遇见露西的时候...
【答案】 C 12.—What were you doing when the telephone rang? —I ___ away my books and ___ to bed. A.had just put;was going B.was just putting;went C. just put;had gone D.have just put;gone 【解析】 此题考查正确使用动词形式的能力。理清动作的先后关...
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