问题

I’ll ask the teacher about past tense. I’m very puzzled about it. — That is just _____ most of our classmates have doubt.

A:what
B:why
C:where
D:how

正确答案是：

同类题型

It is the first time ____ I have come toyour city.

Thethieftriedtoopenthelockeddoorbut__________. [ ]

How many birds can you see in the trees–I can see ________ birds in the trees.

The desks in our classroom are bigger than ______in yours.

From his ________ look, we could see that the professor hadn’t expected that we could raise such ________ questions to him.