More than five doctors and rescuers have got to Yushu County up to now.
| A．thousand | B．thousands | C．thousand of | D．thousands of |
I would appreciate _______ you could give me some advice on TOFEL test.
| A．that when | B．it whether | C．it if | D．that if |
The Arabian Nights _____ well known all over the world, in which many a story_____ interesting and instructive．
| A．is; are | B．are; is | C．are; are | D．is; is |
Spoken English slightly differs from country to country. For instance, in some parts of the US the “r” sounds at the end of the words______.
| A．is dropped | B．have dropped | C．has dropped | D．are dropped |
–The party will begin as soon as all the guests arrive.
—Look, here _____ all the guests!
. is coming B. are coming C. come D. comes
When first __________ to the market, the computer software was not a success due to its complexity in operation.
| A．introducing | B．being introduced |
| C．introduced | D．to be introduced |