1.Young____hewas,hewasfitforthework.
A.becauseB.asC.unless
2.TheUnitedNations_____playedanimportantroleinsolvingtheinternationalaffairs.
A.haveB.isC.has
3.I'mreallysorryforhavingtaken___toomuchofyourtime.
A.awayB.offC.up
4.Thewriterandpolitician____cometothemeeting.
A.hasB.haveC.are
能说理由的就尽量说,说不出的也没关系!
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