So heavy is his _______ that he is as busy as a bee, unable to spare(抽出) even a day for his family in a month.
| A．block | B．source | C．schedule | D．attitude |
One third of the country _____ covered with trees and the majority of the citizens _____ black people.
| A．is; are | B．is; is | C．are; are | D．are; is |
—I heard a bus accident happened yesterday.
—The bus crashed. Luckily, only a few passengers aboard were _____ injured in the traffic accident.
| A．slightly | B．approximately | C．exactly | D．gradually |
The news _____ the prime minister will pay a visit to our school next week has not yet being confirmed.
| A．when | B．whether | C．that | D．Why |
The old lady likes to keep things in the house, _____ throw them away, though many are useless.
| A．more than | B．but also | C．as if | D．rather than |
Hurry up, boys. Only at this rate _____ able to afford a holiday.
| A．we may be | B．may we be | C．we can be | D．can we be |