Pollution is a serious problem. Scientists will _______ some good ways to save it.
A. come up with B. come on
C. come out D. come up
My father often cooks some delicious food _________for us at home.
A. herself B. ourselves
C. himself D. yourselves
— What did you see?
— I saw many boys________ games near the river.
A. played B. playing C. plays D. to play
— What’s the trouble with you?
一I________ a headache.
A. have B. take C. make D. like
Students shouldn’t go to school __________breakfast. It’s bad for their health.
A. with B. without C. for D. by
–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
