下列各组字母中全部是元音字母的是 ____.A. a, e, o, r B. a, i, u, e C. o, u, e, n
I found _____ very difficult to learn maths well.
--Haven’t I told you that the computer needs______? ---Sorry,I forgot_______it fixed.I’ll send it for repairs right away.
---Do you know when Dr Smith_____for dinner this evening? ----No,but I think he _____when he is free.
_____exciting the news is!
The number of chairs in the room_____ten.I’m afraid a number of chairs in the room____lost.