—It’s difficult for the village children to cross the river to get to school. We think a bridge_______over the river.
A. was built B.should be built C. has been built D. is being built
.—How _______the frog(雾) is! We can’t see clearly while riding.
A. thin B. fresh C. thick D. terrified
--__________must be working in the office, I think.
--Sure, the light is still on.
A. Nobody B. Someone C. Everyone D. Anyone
—Why don’t those children go to school? They’re too young to work in the factory.
--Maybe their parents can’t_______their education.
A. afford B. cost C. pay D. spend
—How does Jack usually go to school?
--He_____a bike, but now he_____there to keep healthy.
A. used to riding, is used to walk B. was used to riding, is used to walking
C. used to ride, is used to walking D. used to ride, is used to walk
—Tom, please wash the fruit more times.
--I see. People use chemicals______on their fields.
A. much too B. too much C. many too D. too many
