She did _____she could ____ the lost child.He found his parents with the help of the police.A.that
题目
She did _____she could ____ the lost child.He found his parents with the help of the police.A.that
A.that;take care of B.and;take care of C.what;to take care of D.what;take care of
答案
what 引导宾语从句,what she could 是did 的宾语
to 表目的
简写就是She did sth to do sth
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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