_______ they were not rich, they tried their best to send their child to the best school.
| A．However | B．Because | C．Even though | D．So |
We’ll make laws______ our environment.
| A．protected | B．protecting |
| C．to protect | D．protect |
What are you going to do when you finish ______the room?
| A．to clean | B．cleaning |
| C．clean | D．cleaned |
My cousin was born in China, but ____in Australia.
| A．picked up | B．gave up |
| C．grew up | D．took up |
Some questions _______at their class meeting last week.
| A．raised | B．rose |
| C．were risen | D．were raised |
I’m glad you’ve come back from the United States. Please tell me how long you ____there.
| A．have stayed | B．had stayed |
| C．have been staying | D．stayed |