请在第___50____处填上正确答案。

请在第___50____处填上正确答案。A.over B.by C.with D.beyond

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请在第___43____处填上正确答案。

请在第___43____处填上正确答案。A.while B.since C.until D.when

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A,oldB,rareC,preciousD,nice

A,oldB,rareC,preciousD,nice

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Accordingtoscientists,ourmentalabilitiesbeginto___fromtheage

Accordingtoscientists,ourmentalabilitiesbeginto___fromtheageof27afterreachingthe

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Georgesaidthathewouldcometoschooltoseemethenextday,buthe____

Georgesaidthathewouldcometoschooltoseemethenextday,buthe______.A.wouldn’t B.didn

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