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 |
Across North China in the world, namely the Great Wall.
| A．the longest wall runs | B．runs the longest wall |
| C．does run the longest | D．does the longest wall run |
----How long in hospital?
----One more week at most. He is quickly recovering.
| A．does your father stay | B．has your father stayed |
| C．is your father staying | D．did your father stay |
----Would you mind if I turned the TV on?
----.
| A．Yes, thanks | B．No, you’d better not | C．No, not in the least | D．Yes, go ahead |
It was already lunchtime, so we sat down there was a nice garden and ate something.
| A．before | B．unless | C．that | D．where |
----The 7:30 plane hasn’t turned up yet.
----It has gone off its to keep away from the sudden storm
| A．journey | B．course | C．flight | D．direction |