It is (necessary) that she (comes) here twice a week (to help) (do) the housework.

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问题 It is (necessary) that she (comes) here twice a week (to help) (do) the housework.

选项 A、necessary
B、comes
C、to help
D、do

答案B

解析应改为come。虚拟语气，用动词原形。

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成人本科学位英语

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It is (necessary) that she (comes) here twice a week (to help) (do) the housework.

成人本科学位英语

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Youngpeoplealwayscomplain,moreorlessjustly,thattheirparentsareoutof______withmodernways.

MyfatherwasalwaysverystrictabouthowItalkedtomother,buthewasmore______ifIyelledatmybrother.

Itmaybenecessary,inorderthatfuture【C1】______canenjoycleanair,thatmoreofthe【C2】______isbornebylong-termcentral

OurculturehascausedmostAmericanstoassumenotonlythatourlanguageisuniversalbutthatthegesturesweuseareunderst

Whatweknowofprenataldevelopmentmakesallthisattemptmadebyamothertomoldthecharacterofherunbornchildbystudyi

______scientistsdevelopnewwaysoffeedingthehumanrace,thecrowdedconditionsonearthwillmakeitnecessaryforustol

Hisbrotherhadbecomeateacher,______hewantedtobe.

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—Didyoueatyet?—______.

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风湿性心脏病最常见的心律失常是

关于土壤酸碱度的叙述不正确的是()。

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Itmaybenecessary,inorderthatfuture【C1】canenjoycleanair,thatmoreofthe【C2】isbornebylong-termcentral