It may interest you to know that Bill will be leaving next week.为何用be leaving不是leave?
题目
It may interest you to know that Bill will be leaving next week.为何用be leaving不是leave?
答案
that后面的从句里边也应该有主谓宾
Bill will be leaving.这里的宾语是leaving（动名词）
如果是Bill will leave.这里缺少宾语,除非leave后加上一个here.
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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