Rare species in the world, ______ by hundreds every year, must be jointly preserved by all countries, or humans will encounter ecological disaster in the near future.
—Would you like to go outing with me tonight?
—Oh, with so much homework ________, I’m afraid I couldn’t afford the time.
| A．to finish | B．finishing | C．finished | D．finish |
—Are you satisfied with the result?
—Not at all. It couldn’t be _________.
| A．any better | B．any worse | C．so bad | D．the worst |
The prices of houses, ____________ is often reported, have been going up sharply in the past few months.
| A．which | B．it | C．as | D．what |
Wang Lin failed to be admitted by Hong Kong University last year, and only then _____________the importance of English.
| A．he finally realized | B．he had realized | C．had he realized | D．did he realize |
By playing with the native boys and girls, one can ______ a lot of their language.
| A．pick up | B．set up | C．build up | D．put up |