【初二英语】【句型】They were mending Englishi at that time.（改为否定句）并说明理由!
题目
【初二英语】【句型】They were mending Englishi at that time.（改为否定句）并说明理由!
请回答者说明理由!
They were mending English at that time.（改为否定句）
They_____ _____ _____English at that time.
答案
They were mending English at that time.（改为否定句）
They（were）（not） （mending） at that time
句子中已有were（be动词过去式）,只要在Be动词后加not便解决了
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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