【題目】We __________ online classes on February 17 because of COVID-19.

A.hadB.haveC.will haveD.are having

【答案】A

【解析】

句意:由于新冠肺炎疫情,我們?cè)?/span>217日開(kāi)設(shè)了在線(xiàn)課程。

考查動(dòng)詞時(shí)態(tài)。had一般過(guò)去時(shí);have一般現(xiàn)在時(shí);will have一般將來(lái)時(shí);are having現(xiàn)在進(jìn)行時(shí)。根據(jù)on February 17,可知句子時(shí)態(tài)用一般過(guò)去時(shí),have online classes網(wǎng)上上課,have的過(guò)去式為had,故答案選A。

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