— John, could you please the black-board now? It’s your duty today.
— OK. I’ll do it right away.
| A．not to clean | B．to clean | C．not clean | D．clean |
_____ good time we are having!
| A．What | B．What a | C．How | D．How a |
At first, we didn’t know _______to do.
| A．how | B．where | C．when | D．what |
Shanghai is larger than ___________in Jiangsu.
| A．any city | B．any other city | C．the other cities | D．another city |
The ______ of living areas makes wild animals become fewer than before
| A．loss | B．lost | C．losing | D．lose |
----How did he finish the work?
---- I hear that he did it __________
| A．in the own | B．on his own | C．of the own | D．all his own |