Sally was interested________science and wanted to be a scientist．
| A．for |
| B．in |
| C．through |
| D．at |
—Excuse me, what’s the_________usually used for?
--It’s used for protecting people from the rain.
| A．raincoat. | B．shelf | C．airplane | D．soldier |
—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 |