问题：单选题_____A factorB resourceC sourceD cause...
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问题：_____...
问题：问答题他的话是否真实令人怀疑。...
问题：单选题_____A forB inC atD on...
问题：单选题If most of the people of a country have a television, we _____.A can say the television is a need in the same sense as food, clothing and shelterB can say the television must be a basic necessityC cannot say the television is a basic necessityD can say...
问题：单选题Without the sun’s light _____ the earth’s surface, it would be so cold that life could not exist on the earth.A warmsB warmedC warmingD to warm...
问题：单选题_____A be doneB doneC to doD to doing...
问题：We must have an engineer _____ the workers build the house....
问题：Ellsworth Huntington’s conclusion was based on _____....
问题：The habit of reading newspapers is _____....
问题：You must practice speaking English _____....
问题：What a smell, _____?...
问题：单选题What key _____ influenced the energy situation in 1979?A incidentsB eventsC accidentsD affairs...
问题：Take an umbrella _____ it rains....
问题：What key _____ influenced the energy situation in 1979?...
问题：单选题_____ the day went on, the weather got worse.A WithB SinceC WhileD As...
问题：单选题_____A atB ofC withD from...
