问题

I hear someone _______at the door. Please go and see who _______ is.
A:knock, he
B:knocking, he
C:knock, it
D:knocking, it;
B:knocking, he
C:knock, it
D:knocking, it;
正确答案是:
同类题型
Not until the next morning _____ how serious the situation was.
I’m going to take part in Good Voice of Xin Tai next month.–_______ ! I’m sure you will win.
Peter is ________ than you, right—-Yes, but he is ________ runner in our class.
As a ______ boss, he expected total loyalty and dedication from his employees.