问题

I can’t send an e-mail. Would you please teach me it
A: how doing
B: when to do
C:what doing
D:how to do
B: when to do
C:what doing
D:how to do
正确答案是:
同类题型
In order to findbetterjob, he decided to studysecond foreignlanguage.
In our childhood, we were often _______ by Grandma to pay attention to our table manners. [ ]
The purpose of the research had a more important meaning for them than_______.
Help ____ to some apples, children.
The whole morning _____ the windows and the floors tomorrow.