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[Mr. Haitham Hafez]

1-she felt ashamed beacuse she made a silly mistake
2-she helped me do the homework
3-the commentary on the olympic games was mush better on the other channel
4-could you give me a quick explanation of how this machine works?
5-I have known him for ten years
6-metals expand when they are heated
7-we were having a meeting at work this morning when suddenly all the lights went out
8-what have you done since the weekend
9-when I was eight I saw programme about famous doctor on tv