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The number of teachers in our college _____ greatly increased this term. A number of teachers in this school _____ from the countryside.

A. is; is   B. is; are   C. are; are  D. are; is

B


解析:

the number of“的數(shù)量”,作主語時,謂語動詞常用單數(shù),而“a number of+復(fù)數(shù)名詞”意思是“大量的;許多”,作主語時,謂語動詞用復(fù)數(shù)形式。

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Everyone in business has been told that success is all about attracting and retaining(留住) customers. It sounds simple and achievable. But,   41   , words of wisdom are soon forgotten. Once companies have attracted customers they often    42   the second half of the story. In the excitement of beating off the competition, negotiating prices, securing orders, and delivering the product, managers     43    become carried away. They forget what they regard as the boring side of business---    44   that the customer remains a customer.
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Only now are organizations beginning to wake up to these lost opportunities and calculate the   48  implications.     49    the number of customers a company loses can make a big    50   in its performance. Research in the US found that a five percent decrease in the number of defecting(流失的) customers led to    51   increases of between 25 and 85 percent.
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【小題1】
A.in particularB.in realityC.a(chǎn)t leastD.first of all
【小題2】
A.emphasizeB.doubtC.overlookD.believe
【小題3】
A.tend toB.contribute toC.a(chǎn)ppeal toD.devote to
【小題4】
A.denyingB.ensuringC.a(chǎn)rguingD.proving
【小題5】
A.MovingB.HopingC.Starting D.Failing
【小題6】
A.a(chǎn)verageB.ordinaryC.normalD.usual
【小題7】
A.marketsB.tastesC.prices D.expenses
【小題8】
A.culturalB.socialC.financial D.economical
【小題9】
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【小題10】
A.promise B.planC.mistake D.difference
【小題11】
A.costB.opportunityC.profit D.budget
【小題12】
A.worthyB.worthC.valueD.price
【小題13】
A.serviceB.deliveryC.orderD.promotion
【小題14】
A.a(chǎn)s a resultB.on the wholeC.in conclusion D.on the contrary
【小題15】
A.hugeB.potentialC.extra D.reasonable
【小題16】
A.beliefsB.loyaltyC.interestD.habits
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A.a(chǎn)lteringB.understandingC.keepingD.a(chǎn)ttracting
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A.EstablishedB.AssumedC.Respected D.Unexpected
【小題19】
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B
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