What should I wear if I go _____a dinner?
A. in B. for C. on D. with
Sweet snacks can give us some energy, _______they are not healthy.
A. and B. or
C. but D. so
—Where are you going, Bob?
—To go hiking. Eric _____for me at the school gate!
A. wait B. waits C. waited D. is waiting
—This watch looks nice. How much is it?—It ____ me one hundred and twenty yuan.
A. spends B. costs C. shops D. buys
— does it take you to do your homework every day?
— About one hour.
A. How long B. How far
C. How often D. How much
To keep air clean, people in that city don’t ______fireworks now.
A. take off B. let off
C. turn off D. put off
