We believe scientists will ______ a way to solve the problem of air pollution.
| A．come up with | B．catch up with |
| C．come out | D．come up |
—Why did Miss Wang look so worried when we saw her?
—Because she wondered________.
| A．where did the other students go |
| B．when would the policemen and volunteers come |
| C．what her students have done during the earthquake |
| D．if her students had survived the earthquake in Ya’an. |
—It’s kind of you to give me a ride to the station.
—__________________.
| A．It doesn’t matter. | B．Never mind. |
| C．Don’t mention it. | D．Not at all. It’s a pleasure. |
“I am a singer” is one of _______ TV shows at present.
| A．popular | B．more popular | C．the most popular | D．the popularity |
—Have you heard of the songs sung by the first lady---Peng Liyuan?
—Of course! ___________ beautiful voice she has!
—I agree.
| A．What | B．What a | C．How | D．How a |
—I knocked into a tree when I went to the bus stop for my friend.
—I suppose you _____too fast.
| A．had driven | B．are driving | C．drove | D．were driving |