用所给的时间状语从句改写句子.
题目
用所给的时间状语从句改写句子.
1.What is he doing?(when his parents came back)
2.Who are you talking to?(when I called you last night)
3.It is rainning heavily outside.(when I woke up)
4.Is your father sleeping?(when the telephone rang)
5.I'm looking out of the window.(when the teacher asked me a question)
答案
1.What was he doing when his parents came back?2.Who were you talking to when I called you last night?3.It was rainning heavily outside when I woke up.4.Was your father sleeping when the telephone ran...
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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