. ---Is Bob still performing?
---I’m afraid not. He is said ______ the stage already as he has become an official.
| A．to have left | B．to leave | C．to have been left | D．to be left |
Nothing is more important than health, so it is unwise to build up our business ________ our health.
| A．at the mercy of | B．at the expense of |
| C．in face of | D．in relation to |
In order to know those who really need help as well as how to help them, ________ to help others.
| A．going | B．to go | C．gone | D．go |
Don’t worry about the situation we’re facing now. I think the problem can be ________ without too much difficulty if we don’t lose heart.
| A．turned over | B．taken over | C．got over | D．gone over |
________ was the damage to the machine caused by his carelessness that it would cost thousands of dollars to repair.
| A．So | B．That | C．This | D．Such |
--Could you tell me where you’re working now, Tony?
--In the new development zone. But I ________ in a computer company for five years.
| A．have worked | B．had worked | C．was working | D．worked[ |