－What did you do ________ your last day off?
－I took my dog _______ a walk.
| A．in; for | B．on; for | C．on; as | D．at; on |
The number of the tigers is getting ________. If we don’t help them, they will disappear ______a few years
| A．fewer and fewer, in | B．larger and larger, after |
| C．more and more, after | D．smaller and smaller, in |
_____ 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 |