do does did have has had 作助动词怎么造句
do does did have has had 作助动词怎么造句
英语人气：686 ℃时间：2019-08-26 08:01:29
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例句如下：【 Do 】 you do homework every day?【 Does 】Helen go to school by bus every day?【 Did 】 Liu Tao do homework yesterday?We 【 have】 just done the washing-up.He 【has】 left for Japan.祝开...
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