At present , the butter factory is still polluting the river though it _____to stop.
| A．ordered | B．has ordered | C．will be ordered | D．has been ordered |
Because Sarah has always saved __________, she is now able to afford a big house.
| A．what little she earns | B．how little she earns |
| C．for little she earns | D．with little she earns |
According to one theory, taking part in high-culture activities makes __________ easy for teenagers to make friends with powerful older people, __________ thus increases the chances of their lives turning out well.
| A．that, which | B．it, which |
| C．what, which | D．it, what |
There seems to be two causes as I try to figure out __________ that prevents so many children from being as happy as before.
| A．how it is | B．when it is |
| C．what it is | D．why it is |
We were struck by the limited use __________ their natural resources.
| A．those villagers made of |
| B．which those villagers made |
| C．for those villagers made of |
| D．for those villagers making of |
Cook was a strict but good captain, __________ usually took care of the sailors on his ship.
| A．the one who | B．one who |
| C．that | D．he who |