We believe scientists will a way to solve the problem of air pollution.
| A．set off | B．put off |
| C．come up with | D．catch up with |
Mary， you _____ be short， but now you are tall.
| A．were | B．are | C．use to | D．used to |
The boy is ________ to go to school.
| A．enough old | B．enough young |
| C．young enough | D．old enough |
—Could you tell me the way to the station?
--Sorry， I don’t know the way to the station， ________
| A．too | B．also | C．either | D．neither |
I really don’t mind if friends _______ the same clothes.
| A．put on | B．wear | C．in | D．dress |
My brother said that he __________ all his money last week.
| A．ran our of | B．run |
| C．run out of | D．ran out |