--Don't be so disappointed.I’m sure that you can do better in the next exam.
--Yes, but I ____ this time.
| A．should be more careful | B．could be more careful | C．should have been more careful |
| D．must have been more carefully |
________had the worker who was badly injured in that accident stopped breathing and died________ doctors arrived.
| A．Almost; when | B．Hardly; when | C．Not; until | D．Hardly; before |
So fast _____it is difficult for us to imagine its speed.
| A．does light travel that | B．light travels that |
| C．as light travels that | D．with light travels |
You should know _______to spend all your money on those impractical fancy goods.
| A．other than | B．rather than | C．more than | D．better than |
— I don’t think he is studying English in his room now.
— Oh! ________?
| A．Does he | B．Doesn’t he | C．Is he | D．Isn’t he |
－It was careless of you to leave out some important information．
－Oh, my god! _______．
| A．So were you | B．So I did | C．So did I | D．So was I |