- Carl, are you coming with us?
- I'd love to, but something unexpected_______.
| A．is coming up | B．comes up |
| C．came up | D．has come up |
The ______ old woman often walks in the park ______.
| A．alone; lonely | B．alone; alone | C．lonely; alone | D．lonely; lonely |
We want to be ______ because, as students, we should learn to help other people.
| A．performers | B．interviewers | C．patients | D．volunteers |
I am too busy to listen to her ______ talking. She has talked for about two hours.
| A．hopeless | B．endless | C．harmless | D．careless |
－Look, your sister is playing the piano over there.
－She ______ be my sister. She has gone to America.
| A．mustn’t | B．can’t | C．shouldn’t | D．may not |
It is polite ______ you to give seats to the elderly.
| A．with | B．for | C．of | D．to |