Although metals ________widely in qualities such as strength and hardness，they all have certain qualities in________.
| A．vary；general | B．differ；common |
| C．react；particular | D．refer；detail |
We must ______ the time that you’ve wasted this afternoon by working late to-night.
| A．make up for | B．make out | C．do up | D．make up to |
To work from home, which one could hardly imagine, has been made with the development of computer technology.
| A．possible | B．it possible | C．possibly | D．to be possible |
—But for your timely warning, we into great trouble.
—You know we’re friends.
| A．would get | B．must have got |
| C．would have got | D．couldn’t have got |
It’s certainly hard work. But, ________, a man who wishes to have a career has to make a
great many sacrifices.
| A．on the contrary | B．on the other hand | C．for another | D．in addition |
Written in a hurry, . How can it be satisfactory?
| A．t hey found many mistakes in the report | B．Sam made lots of mist akes in the report |
| C．there are plenty of mistakes in the report | D．the report is full of mistakes |