--Can you speak English?
-- Yes, _____________.
| A．I do | B．you can | C．a little | D．I am |
Sir, would you mind not _____ here, please?
| A．to smoke | B．smoke | C．smoking | D．smoked |
Miss Green isn’t in the office. She_______ to the library.
| A．went | B．was | C．has gone | D．has been |
I didn’t hear your call because I ______ to music at that time.
| A．listen | B．will listen | C．am listening | D．was listening |
My parents often______ me some gifts on my birthday.
| A．buy | B．will buy | C．buys | D．has bought |
— Must we get to the airport before 8 o’clock?
— No, you _____. The plane takes off at 12 o’clock.
| A．mustn’t | B．needn’t | C．wouldn’t | D．shouldn’t |