Our company______Metro Messenger Service since 1998.A、useB、usedC、had usedD、ha

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问题 Our company______Metro Messenger Service since 1998.

选项 A、use
B、used
C、had used
D、has been using

答案 D

解析 An action that has been happening in the past and is continuing in the present may use the present perfect continuous. Choice(A)is the simple form. Choice(B)is the past tense. Choice(C)is the past perfect tense.

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Our company______Metro Messenger Service since 1998.A、useB、usedC、had usedD、ha

Ifthecompany______indebt,theaccountantwouldbethefirsttoknow.A、wereB、

CentralEngineeringCompanyBoardofD

Thiscompanyattemptstomakeitsemployees______likefamily.A、feelingB、feelsC

Thecompanyoffersa______planforitsworkers.A、retirementB、retiringC、retire

Thecompany’squarterlyearningswereup;______theofficersfeltsatisfied.A、nev

From:hr@gxstore.comTo:staff@gxsotre.comSubject:CompanyOutingDate:Marc

Cooper’sCarpetCleaningServiceE-mail:clean@coopercleaning.comTel:265-3728

Cooper’sCarpetCleaningServiceE-mail:clean@coopercleaning.comTel:265-3728

Japan’sNumberFiveTravelCompanybyTakakoMakinoSapporo-InitsOctoberedi

Japan’sNumberFiveTravelCompanybyTakakoMakinoSapporo-InitsOctoberedi

IntheAgeofGenetics,younolongerhavetotrytocutoutsmokingorthin

Lastyear,customers(buy)______atotalof90millioniPodsand2billionsong

36天女婴，以呕吐1个月为主诉就诊。为混合喂养，食欲佳。生后5～6天开始吃奶后呕

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人类社会发展的决定力量是（ ）。A．地理环境 B．人口因素 C．人的

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