There________ some children in the classroom.
| A．have | B．is | C．are | D．has |
Rick has learned a lot about Chinese culture he came to China.
| A．before | B．when | C．until | D．since |
I can’t believe little girls can read many books.
| A．such; so | B．such; such |
| C．so; such | D．so; so |
It was dark I couldn’t see anything.
| A．too; to | B．such; that |
| C．so; that | D．as; as |
Many people didn’t realize the importance of health _______they have fallen ill.
| A．until | B．while | C．when | D．after |
— Would you like to climb the hill with us tomorrow?
— If it ___________ ,I ___________．
| A．doesn’t rain； go | B．won’t rain； go |
| C．don’t rain； will go | D．doesn’t rain； will go |