Usually a meteorological observatory (气象台) _____ air quality in urban areas from one to five: excellent, fairly good, slightly polluted, poor, and dangerous.
| A．identifies | B．purifies | C．classifies | D．clarifies |
Would you like something to drink?
Oh, no, thank you. Please____________________.
| A．take it easy | B．help yourself | C．don’t worry | D．don’t trouble yourself |
No wonder you caught a cold. You _______________ out last night without a coat.
I know how silly I was.
| A．shouldn’t have gone | B．mustn’t have gone |
| C．couldn’t have gone | D．mightn’t have gone |
It was _______ great shock to the world that two Chinese astronauts orbited Earth for five days in ________ Shenzhou VI in October 2005.
| A．不填；不填 | B．the; the | C．a; the | D．不填；the |
The story is uninteresting. I don’t like it ___________.
Which of the following is WRONG?
| A．a little | B．a bit | C．at all | D．in the least |
I found Jane ________ at the desk, __________ her homework carefully.
| A．seated; doing | B．sitting; does | C．be seated; does | D．sit; do |