Vòng 2

I.

II.

1.I think you had better give up smoking immediately

2.I expect we should get there by 5:00, if there isn't too much traffic

3.Do I have to bring my passport?

4.The cat must be in the hose somewhere

5.You do not have to have an aerial with this radio

6.It is very inconvenient if you are unable to drive

7.I am sure that 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 that better