`1. B` paint -> painted

`2. C`accustomed to + Ving

`3. A`said -> saying ( Cấu trúc: After + V_ing: sau khi làm gì đó)

`4. D`you will decide -> will you decide 

`5. D`  có so far:-> Haven't received

`6. C`. sit -> sits ( hiện tại đơn)

`7. A` Vì câu có 2 động từ chính mà lại có 1 chủ ngữ => thiếu đại từ quan hệ:was sent -> sent

`8. A`Have you receive ->Have you received( do câu sử dụng hiện tại hoàn thành)

`9. A`that -> which ( bữa ăn ta nên dùng cái)

`10. C`( Sau either : S + V + O -> does)

Xin hay nhất

1. We are having my house paint (Painted). That is why there is all this mess.
2. I think Helen is accustomed to work(working) eight hours a day.
3. After said(saying) goodbye to my parents, I went to school with my sister.
4. Only when you have had a chance to know various occupations you will decide (will you decide) on your career.

5.I tried to do everything to contact John two weeks ago but so far I don't(haven’t) receive his reply.

1. That's the girl whose brother sit(sits) next to me at school.
2. The letter was sent(sent) by special delivery must be important.
3. Have you receive(received) the parcel which we sent you ?
4. The meal last night, that(which) wasn't tasty, was quite expensive.
5. Either Lan or her sister do(does) the housework every day
6. vote hay nhất + 5 sao nhé