精选优质文档-倾情为你奉上语法:现在完成时一.结构:have/has + 过去分词句式构成举例含义肯定式have/has+过去分词I have had lunch.我已吃过午饭了。(现在不饿了。)否定式have/has+not+过去分词I havent had lunch.我还没吃午饭。(现在是饿的)一般疑问式have/has提前Have you had lunch?你吃过午饭了吗?1、We _ Xiao Li since she was a little girl . A. know B. had known C. have known D. knew2. -Why not see the film Harry Potter with me? -I_it.A. has seen B. see C. was seeing D. saw 3. I _ my t
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