All the students ______ the floor ________ they heard a man ________“help”.

May I go and play with Dick this afternoon, Mum?No, you can’t go out _______ your work is being done

I’m as busy as a bee；________ you bother me with so many questions now?

Tom was a student at this university from 1999 to 2003, ____ he studied very hard and was madeChairman of the Students’ Union.[ ]

Do you have any problems _______ your maths— No, I don’t. But I need some help _____ myEnglish.