I have lost one of my gloves. I __________it somewhere.
| A．must drop | B．must have dropped |
| C．must be dropping | D．must have been dropped |
Liu Xiang's Olympic dreams were shattered（破灭）forsecond time when he unfortunatelycrashed at first barrier in the ll0m hurdles heats in London．
| A．the; the | B．a; a | C．a; the | D．the; a |
—I see you got a "D" in biology．_?
—Well, I found that subject hard． I think I'II drop it for history．
| A．How about that | B．What for |
| C．How come | D．What's your next plan |
Some aspects of a pilot's jobbe boring, and pilots oftenwork at inconvenient hours．
| A．can ; have to | B．may ; can |
| C．have to; may | D．ought to; must |
Though it's a challenging job, he did itit took me．
| A．one-third a time | B．one – third time |
| C．the one - third time | D．one - third the time |
—What's the matter with John? He has been sitting there for hours．
—A postcard from his fatheran attack of home - sickness in him．
| A．took up | B．set off | C．brought in | D．built up |