—What a pity! Their experiment is a failure.
—They ________ better under more favorable conditions.
| A．should have done | B．could have done | C．must have done | D．may have done |
The sentence “All hope was not lost” means.
| A．Not all hope was lost. | B．There was no hope at all. |
| C．Everything went very well. | D．All hope still remains. |
I watched the man for a long time and wanted to know.
| A．whether I have seen him before | B．where I had seen him before |
| C．that I had seen him before | D．when did I see him |
---We went to bed that evening at 10:30.
---That’s a good habit.
| A．at an end | B．as usual | C．right away | D．as a matter of fact |
---Our familyto Taiwan Island this coming holiday.
---Have a great time!
| A．have traveled | B．went traveling | C．are traveling | D．would travel |
---A car knocked Jack down while he was playing on his way home.
---Really? We are toldin the street.
| A．not playing | B．not play | C．don’t play | D．not to play |