Vòng 2

1,
1.A
2.B
3.C 
4.D
5.A
6.C
7.A
8 C
9.B
10.C
11.A
12.A
13.D
14.A
15.B
16.D
17.D
18.B
19 B
20. D
II,
1. I think you had better give up smoking imediately
2. If there isn't too much traffic, we should get there by 5pm
3. Do I have to bring my passport?
4. The cat must be in the house somewhere
5. You don't have to have an aerial with this radio
6. It is very inconvenient if you are unable to drive
7. John can't be the thief
8. Norman is bound to be late
9.All students are to report to the main hall at 9.00
10.You ought to know better