—Oh, come on. Just ___ . I’m very busy now!
--OK. To tell the truth, I need your help with my paper.
A.take your time | B.don’t hesitate |
C.come to the point | D.take your turn |
With more forests being destroyed, huge quantities of good earth _____ each year.
A.is washing away | B.is being washed away |
C.are washing away | D.are being washed away |
—Would you like to join us in playing the game?
—I’m sorry, but my homework ______ by now.
A.hasn’t finished | B.hasn’t been finished | C.isn’t finished | D.won’t be finished |
Great as Newton was, many of his ideas _____today and are being modified by the work of scientists of our time.
A.are to challenge | B.may be challenged | C.have been challenged | D.are challenged |
She tried hard to keep calm in face of the students, but the sweat on her forehead _____ her ____.
A.gave; away | B.tuned; down | C.showed; out | D.shut; off |
Thomas Alva Edison didn’t “invent” the light bulb (灯泡), but rather he ______ a 50 –year –old idea, which is not well –known.
A.improved upon | B.take down | C.put up | D.break away |