-A number of volunteers_______ willing to teach in China's rural(农村的) areas.
-Yes, the number is getting_______
| A．is; bigger and bigger | B．are; bigger and bigger |
| C．is; more and more | D．are; more and more |
We should clean _____ every day
| A．our tooth | B．our teeths |
| C．our teeth | D．teeths |
He said that light ______much faster than sound.
| A．has traveled | B．went |
| C．traveled | D．travels |
—I want to teach in Tibet when I graduate from the college.
—Me too. Teachers ___very much there.
| A．need | B．are needing |
| C．are needed | D．is needed |
—Sorry, I don’t know what the teacher said just now.
—He asked Maria____________.
| A．how long she usually spends on her homework |
| B．what she was doing these days |
| C．if she has finished her homework on time |
| D．When the speech will begin. |
—________ cold weather!
—Yes, it is. You should wear warm clothes.
| A．What a | B．What |
| C．How | D．How a |