1.B
2.A
3.B
4.D
5.C
6.D
7.C
8.C
1.Do you mind smoking here?
2.The woman taking to Hoa is Miss Lien
3.Do you mind if I ask question ?
4.The boy is playing soccer at the present
5.She bought a new hat yesterday
5sao+ctlhn+1 cam on+1xac thuc
chuc ban hoc tot