The teacher asked them who had completed their tests to leave the room as quiet as possible.
题目
The teacher asked them who had completed their tests to leave the room as quiet as possible.
请问这里的to可以省略吗?也就是说ask当使役动词讲时,后面的不定式,可否省略to?ask sb to do sth /ask sb do sth
答案
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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