Another type of pollution, ______ thermal pollution (热污染), is caused by fuel-burning.
|
A．calling |
B．called |
C．to call |
D．calls |
They had great difficulty ____ the people ____ in the fire.
|
A．in rescue, trapping |
B．to rescue, trapped |
|
C．in rescuing, who trapping |
D．rescuing, trapped |
It was midnight _____we reached the station.
|
A．that |
B．when |
C．on which |
D．which |
When he turned professional at the age of 11, Mike _____ to become a world champion by his coach and parents.
|
A．expected |
B．was expecting |
|
C．was expected |
D．would be expected |
In some countries where there is not enough coal, water is used to ____ electricity.
|
A．making |
B．make |
C．be made |
D．being made |
How I regretted ______ the hours in the forest ______ I should have studied hard in the classroom.
|
A．to waste; when |
B．to waste; where |
C．wasting; when |
D．wasting; where |
