问题

Do you still remember when we went to Australia–I can’t remember now but ______ sometime last winter

A:might it be
B:could it be
C:could it have been
D:should it have been;

正确答案是：

同类题型

The teacher told us ____the window in class

I think Zheng Jie is _______ a risingtennis star She has put China on the tennis map

The water behind the Three Gorges Dam should be ________ higher than down stream.[ ]

The foreigner couldn’t write it down,though I _______ the telephone number many times.

With the development of economy, our country is becoming more and more powerful ____ financial situation