---Is the girl in the red skirt your sister?
---No. It _______ be her. She has flown to Australia.
| A．can’t | B．needn’t | C．must | D．may |
---_______ do you watch TV?
---Only once on Saturday evening. You know as a student I am too busy.
| A．How much | B．How long | C．How soon | D．How often |
--- Did your classmates have a good time in the Disneyland last weekend?
---Yes. They enjoyed _________ very much.
| A．themselves | B．yourselves | C．ourselves | D．himself |
---I saw your sister ride a new bike this morning.
---A new bike? She ________ it for about two years.
| A．bought | B．has bought | C．had | D．has had |
---What’s the best restaurant in your town？
---Red Star Restaurant. The customers are all pleased with the ____ of the restaurant.
| A．service | B．experience | C．notice | D．fruit |