问题
Who’s that at the door, Tony—________ is the postman, I think.
A:He
B:It
C:This
D:That;
B:It
C:This
D:That;
正确答案是：
同类题型
What’s wrong with you, Eric—-________ to prepare for the coming exam last night.
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didn’t you buy the camera you had longed for—I had planned to, but I was ￡50 ____.
Luckily, _______ happened to be no one in the building when the terrible fire broke out[ ]
My family has two lovely dogs. One is black and ________ is yellow.