The scientists are beating their brains, trying to ______ a solution to the problem.
| A．look up to | B．live up to | C．come up with | D．keep up with |
—My name is Katherine．Shall I spell it for you?
—.
| A．Not at all | B．Nice to meet you |
| C．Take it easy | D．If you don’t mind |
He asked me with me.
| A．what the matter is | B．what the matter was |
| C．what’s the matter | D．what was the matter |
America is an country. You can hear everywhere.
| A．English-spoken, English speaking | B．English-speaking, English spoken |
| C．speaking-English, English spoken | D．spoken-English, English speaking |
What difficulty do you have the poor children from the poor village?
| A．helping | B．in help | C．to help | D．helped |
I requested that you the task on time.
| A．finished | B．finish | C．could finish | D．would finish |