Can you see a set of keys here?
| A．Yes．I am． | B．No，I'm not． |
| C．Yes，I do． | D．No，I can’t． |
–How does Jack usually go to work?
—He ______ drive a car, but now he ______ there to lose weight.
| A．used to; is used to walk |
| B．was used to; is used to walking |
| C．was used to; is used to walk |
| D．used to; is used to walking |
—Why are you so tired these days?
—Well, I have ________ homework to do.
| A．too much | B．too many | C．much too | D．many too |
___his surprise, she succeeded in climbing up the high mountain.
| A．At | B．To | C．In | D．On |
What’s_________ with you?
| A．trouble | B．the matter | C．the wrong | D．Matter |
My grandparents are very healthy. They always ______ after school.
| A．brush tooth | B．take a shower |
| C．clean the room | D．take a walk |