When she was awake, she found that she was on seemed to be a piece of stone.
| A．lying; that | B．laying; which | C．laying; it | D．lying; what |
______ the ancient Egyptians built the pyramids puzzled people for centuries.
| A．Whether | B．What | C．How | D．Where |
______ I’m well again, I can go on with my work.
| A．Even if | B．As though | C．Ever after | D．Now that |
The government has to close those small factories to prevent the water of the river ______.
| A．polluting | B．from polluting | C．being polluted | D．polluted |
We should try our best to ______ those people after the disaster.
| A．break out | B．cheer on | C．break up | D．cheer up |
------We want someone to design the new art museum for us.
------______the young fellow have a try?
| A．May | B．Shall | C．Will | D．Need |