— Must I feed the goldfish now?
— No, you ______. But you must do it before supper.
| A．needn’t | B．mustn’t | C．don’t | D．can’t |
——Did Lily use to be short?
——________, but he is tall now．
| A．No, she did． | B．No, she didn’t． |
| C．Yes, she did． | D．Yes, she do． |
——Could you tell me how to get to the Yellowstone National Park from here?
——_________．Maybe you can ask the policeman over there．
| A．A piece of cake | B．That depends |
| C．I don’t care | D．Sorry, I’m new here． |
——Could I ask you a few questions?
——___________．
| A．Do it． | B．Sure． |
| C．What a good idea． | D．Forget it． |
Which of the following animals lives only on grass?
A.B.C.D.
— Thanks for the delicious food．
—_________．
| A．No，thanks | B．That’s right |
| C．All right | D．My pleasure |