--- Could you help me ______a shelf on the wall? ---No problem
| A．put on | B．put in |
| C．put up | D．put off |
They enjoy _____ piano in their free time.
| A．play | B．playing |
| C．playing the | D．to play a |
Teenagers should_____________ drive. They’re not serious enough.
| A．allowed to | B．be allowed to |
| C．allow to | D．not be allowed to |
_____ they _____ to go to the park when they were children?
| A．Did, use | B．Did, used | C．Do, used | D．Do, use |
--do you improve your English ?
--I improve itpracticing it more often.
| A．How; with | B．What; with | C．How; by | D．What; by |
We had fun __________ in the lake last Sunday.
A. boat B. boating C. boated