问题
I am not able to solve some practical problems using Newton’s First Law of Motion. —-That’s just _______ most of the students are puzzled easily.
A:what
B:why
C:how
D:where
B:why
C:how
D:where
正确答案是：
同类题型
They had their hearingby the loud noise of machines.
Now Jerry ______ the exchange programme with his classmates in the meeting room.
Who________your parents talking________—They are talking to my brother．
Have you ever read the book Harry Potter— Yes, and I think it’s very ____. I want to read it again.