. I first met Mr Zhao nine years ago. He ____ at a chemical college at that time.
| A．had worked | B．has worked | C．was working | D．had been working |
This is an unpleasant subject __________ we might argue for a long while.
| A．in which | B．with them |
| C．about which | D．with it |
The sale usually takes place outside the house,with the audience __________ on benches,chairs or boxes.
| A．having seated | B．seating |
| C．seated | D．having been seated |
—Do you have the experience like that?
—Well,I’ve done the work before,so I know what _________ in my new job here.
| A．expected | B．expecting |
| C．to expect | D．to be expecting |
.It has been reported that the Galileo Space Project is a satellite positioning and navigation system _________ for civilian use.
| A．intending | B．intended |
| C．to intend | D．to be intended |
The monkeys look sweet,but they _________ be very naughty.
| A．may | B．need | C．should | D．can |