问题

You look pale and upset—-Yes, my girl friend _____ an online chat with me non-stop until six o’clock this morning

A:have been having
B:had had
C:was having
D:am having

正确答案是：

同类题型

etic engineering, ______ progress has been very rapid recently, is perhapsthe most important of all the sciences

The coin, which ______ the 1920, ______.

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______do you think of your teacher

Is the cat _________ the wall No, it isn’t. It’s _________ the door.