初一英语改错

1)ＴhoughＥnglish is very diffcult to learn,we all know it's one of (the most0 useful languages.2)Ｍost of the work in these factories are(is) done by the machines.3)Ｉ saw ＭｒＧreen put on his hat and went(go) out a moment ago.4)Ｉ'ｍ not felling(feeling) well.Ｉ've caught(had) a cold for three weeks.5) Ｔhe boy told me that he didn't know what the sentence was(去掉） meant.6)Ｉ（加was) told that the sports meeting would be held in three days.7)Ｔhose flowers on the desk are(去掉） looked(look) beautiful ,don't they?8)Ｃomrade Ｗang is too(so) busy with his work that he had no time to write to his parents.9)Ｉhave come(been) to(in) Ｓhanghai for more than ten years.Ｉhave visited many places.10)Ｄon't forget to pay what you have taken.(没错）11)Ｍy daughter will return back(去掉） to school next week.Ｗill you go with her?