--- Mr Wu, could you tell me ________?--- You’d better do more speaking.
一Do you know why he didn’t ________ a word when he ________ to?—Because he was too nervous.
—Do you know the price of the ticket?—Yes.Each ________ ¥180.
You mustn’t go off on your own,because you ________ get lost in the mountains.
一Diaoyu Island belongs to China.一Surely it does! We Chinese never ________ it up.
—There was thick haze(雾霾)in our city this year.What do you think of it?—I think ________ cars we drive,____pollution our city will have.