Question

【題目】We _____ on the new machine when the electricity went off.

A.workedB.are workingC.would workD.were working

Answer 1

【答案】D

【解析】

句意：當(dāng)斷電時(shí)，我們正在操作新機(jī)器。

考查時(shí)態(tài)。A. worked（一般過(guò)去時(shí)）；B. are working（現(xiàn)在進(jìn)行時(shí)）；C. would work（過(guò)去將來(lái)時(shí)）；D. were working（過(guò)去進(jìn)行時(shí)）when引導(dǎo)的時(shí)間狀語(yǔ)從句，表示的是時(shí)間點(diǎn)，主句的含義“正正在那時(shí)……”；根據(jù)主從句時(shí)態(tài)范疇一致，從句用一般過(guò)去時(shí)，主句用過(guò)去進(jìn)行時(shí)，故選D。