We should keep our eyes _______ while doing eye exercises.
| A．close | B．closed | C．open | D．opened |
_______ you ________ the book to the library yet?
| A．Have, returned | B．Do, return |
| C．Will, return | D．Did, return |
There were few people ________ on the ice when we got there.
| A．skate | B．skated | C．skating | D．skates |
Dick _______ in England, but he has been _______ Chinese food since he moved to China.
| A．used to live; used to eating |
| B．is used to live; used to eat |
| C．is used to live; used to eating |
| D．used to living; used to eat |
People are encouraged to ________ paper and water for a better environment.
| A．use | B．waste | C．recycle | D．make |
Turn off the water while you ____ your teeth or washing your face.
| A．were brushing | B．brush |
| C．are brushing | D．brushed |