--________do you go to the dentist?
--Let me see, twice a year, maybe.
| A．How many | B．How much | C．How often | D．How soon |
____ you play ____ piano ____ when you were young?
| A．Can, /, good | B．Could, /, well |
| C．Could, the , well | D．Can, the, good |
The ________ boy ___________ the fire on May 10th.
| A．18 years old, put out | B．18-year-old, put out |
| C．18 years old, putted out | D．18-year-old, putted out |
It’s necessary _____ the dog’s fur and play with it for _______.
| A．brushing, sometimes | B．to brush, sometime |
| C．brushing, sometimes | D．to brush, some time |
We’ll vote ____ David, do you agree ____ me?
| A．to, with | B．for, with | C．for, to | D．to, for |
We’ll go hiking if it_________ rain tomorrow.
| A．won’t rain | B． isn’t going to rain |
| C．doestn’t rain | D．don’t rain |