1 : He drinks a lot of mineral waters in a day

Lỗi: waters => water

2 : We should'n run or walk caeless around the pool edge

Lỗi: careless => carelessly (V+adv)

3 : Hoa told me that her aunt cutted her hair yesterday

Lỗi: cutted => cut (cut -> cut -> cut)

4 : There are a large, modern bathroom and a kitchenin the aoartment

Lỗi: are => is

5 : Many people think that teachers give students too many homework

=> Lỗi : many => much

6 : Mr.Ba works in a factory for five days a week

Lỗi: for => bỏ for

7 : In my opinion, Tam is a more lazier student than Hoa is

Lỗi: more => bỏ more

8 : My children don't like those kind of imported toys

Lỗi: kind => kinds

9 : I like studying history and I find this subject very interested

Lỗi: interested => interesting

10 : Ken is a very more careful driver than Simon

Lỗi : very => bỏ very/ much