ifeontheEarth\rD.peopletakeuptoomuchspace\r2.NowitisdifficultforustomovetoVenusbecause\rA.itistoohotformentolandon\rB.thereisnowaterthere\rC.wecannotchangetheenvironmentthere\rD.it'salongdistanceforustogothere\r3.Thealgaeplayaveryimportantroleinthepossiblesolution\rbecause.\rA.theycanbeproducedeasilyontheEarth\rcB.therearealotofthemonVenus\rcC.theycanbeeasilycarriedtoVenus\rD.theycanliveinhotandcoldconditionsandproduceoxygen\r4.ThefirstcitizenswillfindlifeonVenusnotpleasantbecause\rA.theirheartswillsuffermorestress\rB.theirdaysandnightswilllastquitelong\rcC.therearenotanyhousesthere\rD.thereistoomuchwaterthere\r5.OneoftheadvantagesthefirstcitizensonVenusw川enjoyis\rA.theywillhavemuchmorespace\rB.theywon*tsufferfromheartdisease\rC.theirlifewilllastlonger\rD.theywillhavebetterlivingconditions
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