We must _______ to help them out of trouble.
| A．try our best | B．try your best |
| C．try | D．trying |
There are about nine_______ students in that middle school.
| A．hundred of | B．hundreds of |
| C．hundred | D．hundreds |
It’s very nice ______ you to help me with the hard work. ______!
| A．for, I very thank you |
| B．for, Thank you very much |
| C．of, I thanks you |
| D．of, Thanks a lot |
--How was your weekend? ---- _________.
| A．That sounds great | B．Fine, thanks |
| C．It was great | D．That’s OK |
—Why do you like dogs?
—________ they are very friendly.
| A．So | B．But |
| C．Because | D．And |
The boy is afraid ______ his mother because she is very strict _____ him.
| A．at; with | B．about; in |
| C．of; with | D．with; of |