Choose the correct answer.If we .......................serious about pollution, we ...................... more money on research.A.had been/ spentB.were/ had spentC.were/ would spendD.are/ will spend
Choose the correct answer.Sea water is salty. If the oceans.................of fresh water, there ............. plenty of water to irrigate all of the deserts in the world.A.consisted/ would beB.consisted/ wereC.would consist/ could beD.consist/ will be
Around 150 B.C. the Greek astronomer Hipparchus developed a system to classify stars according to brightness.A.recordB.shineC.categorizeD.diversify
(37) .................A.whenB.asC.whileD.since
(39)...............A.whichB.theyC.whenD.who
The best title for this passage is ……………A.Sea HarvestB.Sea FoodC.Man and the SeaD.Technology for Exploiting the Sea
The sea serves the needs of man because ……………….A.it provide man with food.B.it supplies man with minerals.C.it offers oil to manD.all are correct
The words 'Oriental people' in paragraph 4 probably mean…………………..A.the people in AsiaB.African peopleC.European peopleD.American people
xThe floor was covered in tiny pieces of paper.A.unimportantB.manyC.very largeD.extremely small
Climbing without a safety rope is forbidden.A.You aren't allowed to climb without a safety rope.B.You don't permit to climb without a safety rope.C.You aren't forbidden climbing without a safety rope.D.You had better climb with a safety rope.
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