She studies hard all the time； she never gives up .
A. study B. to study
C. studying D. to studying
— Look! She’s skiing so fast!
— Hard to her legs were once broken.
A. know B. realize C. imagine D. Find
The air pollution caused the of many trees in this area. We should take care of the environment.
A. die B. died C. death D. dying
Did you and your brother do any housework at home last weekend， Sally?
—_________ did， because we went out for a trip with our parents.
A. Either B. Both C. Neither D. Each
—Does your brother get up early or late?
—He used to _________very late， but now he is used to _________ early.
A. get up； getting up B. got up； get up
C. getting up； get up D. getting up； getting up
—I’m worried about my school grades. What’s your advice?
—You shouldn’t wait ________ the last minute to study for a test.
A. although B. until C. but D. if
