________ of the land in that district _________ covered with trees and grass.
| A．Two fifth; is | B．Two fifth; are | C．Two fifths; is | D．Two fifths; are |
Lucy is a shy girl, but can you imagine ______ with the boss in Japanese?
| A．her quarrel | B．her to quarrel | C．her quarreling | D．she to quarrel |
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 |