--- They are quiet, aren’t they? --- Yes. They are accustomed __________ at meals.
| A．to talk | B．to not talk | C．to talking | D．to not talking |
In the park, the number of visitors is tightly ____ to avoid damaging the environment or putting stress on the animals.
| A．limited | B．encouraged | C．expected | D．intended |
—I didn’t go to the Museum yesterday.
—Yes, but I would rather youthere too.
| A．went | B．had been |
| C．should go | D．would have gone |
This picture was taken a long time ago. I wonder if you can ___ my mother.
| A．find out | B．pick out | C．look out | D．speak out |
He got well-prepared for the job interview, for he couldn’t risk _____ the good opportunity.
| A．losing | B．to lose | C．to be lost | D．being lost |
—— She will finish the project within three days!
—— ______! I could do it in three hours.
| A．You are right | B．I’m stuck | C．Oh, come on | D．Don’t mention it |