— Why do you do volunteer work in the North—West？
— I_____ to improve the lives of the children there through my efforts．
| A．was trying | B．have tried |
| C．am trying | D．tried |
It is demanded that the plan _____ out as soon as possible.
| A．must be carried | B．is to carry out | C．carried | D．be carried |
The number of deaths from heart disease will be reduced greatly if people ____ to ear more fruit and vitamins.
| A．persuade | B．will persuade | C．be persuade | D．are persuaded |
He seems too tired today, and I wonder__________ he got a good sleep last night.
| A．when | B．that | C．if | D．where |
David jumped _____ to get the first ______ the beginning of the sports.
| A．enough high; in | B．enough highly; in |
| C．high enough; at | D．highly enough; at |
The president of the country was well_________ of when he was in power.
| A．praised | B．fond | C．appreciated | D．thought |