[Bella_Luna]

1) I advise you not to buy all these toys .
2) The more you pay attention , the more informaition you will gain .
3) Why don't we goto the club and play tennis ?
4) He made a promise that he will help me.
5) When i was young i had got a football ( i used to have a football ) .
6) She hasn't got a piano.
7) They had a discussion for one hour .
8)
9) Ahmed Zewail made the discovery of the femto second .
10) My father's advice to me is good .
11) You 'd better not to waste your time .
12) Did you have a swim yesterday ?
13) She gave an explanation for the poem well ( and it was good ) .
14) They discouraged me to be bad ( not to be good ) ./ They discouraged me from being bad .
15) He spent two weeks finishing the report .
16) He gave me alot of information about the project .
17) He played tricks on us all (all of us ) .
18) The most devoted animals are dogs . / The dog is a devoted animal .
19) He lives in the arab republic of Egypt .
20) He went to the office to finish the deal .

thank you alot sir .. and i don't know number 8 answer
i hope my other answers are right