— do you go to school by bike? —Only four times a week.
| A．How many times | B．How often |
| C．How long | D．How soon |
It’s impolite ________ loudly in public places.
A. to speak B. speaking C. to speaking
—_______ is the hot water used for?
— It is used to wash clothes.
A.Who B. What C. Where
—Do you know the boy _______ is talking to Mr. Smith?
—Yes, he's my brother.
A. whatB. whichC. Who
Every student is supposed _______ the school uniform on weekdays.
A. wearB. wearingC. to wear
The young man is the only college student in the village. The villagers _______ him.
A. be proud of B. proud ofC. are proud of