By the time Fred gets back home, his girlfriend for London to study.
| A．will have left | B．leaves | C．has left | D．will leave |
The experts are trying to find ways of ____ the animals in danger.
| A．rescuing | B．dragging | C．seizing | D．watching out |
Tom, as well as the other children who ____ no parents, ____ good care of in our country.
| A．have; is being taken | B．have; has taken |
| C．has; have been taken | D．has; are being taken |
Go on ______ the other exercise after you have finished this one.
| A．to do | B．doing | C．with | D．to be doing. |
We grow all our own fruit and vegetables, ____ saves money, of course.
A asB. which C. thatD. what
If you have some difficulties ____ your grammar, you had better ask your teacher ____.
| A．in; on some advice | B．for; for some advices |
| C．on; some advice | D．with; for some advice |