---Does my question sound ________ enough?
---I don’t think so. You can ask more ________ by using “could” instead of “can”.
| A．polite; politely | B．politely; polite |
| C．politely; politely | D．polite; polite |
--- What can I do for you, sir?
--- It’s so hot now. Could you give me _____________.
| A．cold something to eat | B．anything cold to drink |
| C．anything cold to eat | D．something cold to drink |
Andy is very tall, but I’m _______.
| A．thin | B．short | C．slim | D．small |
_Could I go to the movie this Sunday, Dad?
Yes, you_____. But you ______ come back before nine.
| A．should, can | B．must ,have to |
| C．can , have to | D．need, must |
—Would you mind turning down the music?
—.
| A．Yes, I would | B．No, of course | C．No, not at all | D．Yes, of course |
Last year I _________ drive. I used to take the bus.
| A．could | B．couldn’t | C．should | D．shouldn't |