He devoted most of his time to his research, believing his hard work would___sooner or later.
| A．put off | B．take off | C．come off | D．pay off |
He was watching a failmthe scene reminded him ofhe had experienced in France.
| A．that, what | B．when, what | C．whose, that | D．while, which |
Wethe opportunity to go to France, had it not been for Mary’s help.
| A．would have lost | B．should lose | C．might lose | D．must have lost |
—How time flies. A little boy turns into a young man.
—Yes, it won’t be longhefrom university.
| A．when, will graduate | B．after, graduates |
| C．since, had graduated | D．before, graduates |
His parents made a suggestion that hean hour for exercise every day.
| A．sets away | B．set aside | C．sets apart | D．set up |
asleepa knock at the door awakened her．
| A．Scarcely had she fallen than | B．No sooner did she fall; than |
| C．Hardly she had when when | D．Scarcely had she fallen; when |