题目内容
4.( 2014 浙江杭州,28, ★☆☆) After Steven sent some emails,he surfing the Internet.
A. starts B. has started C.will start D. started
4.D
4.D句意:Steven发了几封电子邮件之后,开始上网。由After Steven sent some emails可知应用一般过去时。故选D。
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