It is a ________，but is a chance as well.
| A．task | B．question | C．challenge | D．work |
-- How about dinner tonight? It's on me.
-- .
| A．You're welcome | B．I'd like to. |
| C．Well, I'm afraid so. | D．That's all right. |
We were very excited to watch the national flag in the blue sky.
| A．risen | B．raise |
| C．to raise | D．rising |
I know you are very _______ ice cream, but you will be too fat if you eat too much.
| A．tired of | B．fond of |
| C．full of | D．afraid of |
Tom insisted that the boy _______ seriously ill and that the boy _______ to the hospital at once.
| A．be; should be sent | B．be; was sent |
| C．was; be sent | D．was; was sent |
Mr. Richard would not come for supper because he was in the research of bird language.
| A．shocked | B．cared |
| C．buried | D．spared |