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1. Several children are away from school because they are ill.
- Because + 1 mệnh đề, because of + 1 cụm danh từ.
2. Because Noze wasn't feeling well, she went home early.
- Because + 1 mệnh đề
3. You don't need to mop the floor twive every day.
-It is (not) necessary (for O)+to V.....->S +(do/does not) need to V.
4. Mình k bik lm nha, xin lỗi..=((
5. Lia advised me to wash the dishes after lunch.
- advise + O + to V.
6. She likes sweeping the floor at home.
- Thích 1 cái j đó.
7. My mother is the most generous (person) in the world.
- So sánh hơn nhất - the most + tính từ.
8. Jackson has played the piano for 10 years.
- S + started/began + V ing/ to V + thời gian +ago.
-> S + have/has + P2 + for/since + thời gian.
9. It took Jennie 2 hours to tidy her bedroom.
- Mất bao lâu để làm gì : It takes (took) + O + thời gian + to V.
                                 -> S + spend(s/spent) + thời gian + V ing.
10. Mình ko bik làm, xin lỗi nhé..... =((