David often forgets _____ his English book.
| A．to bring | B．bring |
| C．brought | D．brings |
It is better to ____ the lights before you leave here.
| A．put out | B．put off | C．put on | D．put up |
I will do it.
| A．after a minute | B．in a minute | C．right way | D．before a minute |
Why not _____ help when you were in trouble?
| A．you ask for | B．ask for |
| C．asking for | D．asked for |
Could you please ________?
| A．do the dishes | B．doing the dishes |
| C．to do the dishes | D．did the dishes |
Dropping litter ______ never allowed in our city.
| A．don’t | B．are | C．will | D．is |