问题
Hello, Mary! This is John. You must know why I _________ you.－Oh, hello, John! I’ve waited for this call since last month.
A:called
B:am calling
C:was calling
D:have called
B:am calling
C:was calling
D:have called
正确答案是：
同类题型
In North America, most students go to school_____ the school bus.[ ]
Don’t ask the foreigners that question. It’s too______.––Sorry, I won’t next time.
How do you like ________color of my dress? —Wonderful! I like it very much.
He has to_________ 20 yuan on the book. But I needn’t _______ any money for it.