i spend two hours _____the internet every week 1.to surf 2.to on 3.to get in 4.surfing
问题描述：
i spend two hours _____the internet every week 1.to surf 2.to on 3.to get in 4.surfing
答
4
spend doing sth.
答
surfing spend some time dong sth.
答
4.surfing
sb. spend time doing sth. 固定句型,"某人花时间做某事"
答
4
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答
4.surfing
spend some time doing sth.