问题

Have you been to the United States?—Yes, only onceI ________ there only for seven days

A:stayed
B:had stayed
C:have stayed
D:was staying

正确答案是：

同类题型

When I first met Doris I didn’t like her, but I ______ my mind.

Mother’s Day is coming. Why don’t you get your mother a pair of glasses–_______.Glasses can help her read better.

Many people in England love to give advice on weather reporting.—Yes, but I think the weather office’s computers _____ be more accurate.

－Shall we go there by taxi －No, we ______. It’s not far from here.

o cause people some health problems, in fact farmore serious _____ than computers do