Question

Mr Smith ______ a book about China last year but I don’t know whether he has finished it.

A．has written	B．wrote
C．had written	D．was writing

Answer 1

D

考查時(shí)態(tài)。句意：去年史密斯先生一直在寫一本關(guān)于中國(guó)的書，但是我不知道他是否已經(jīng)完成了。結(jié)合語(yǔ)境可知前文描述的是在過(guò)去一直在進(jìn)行的動(dòng)作，故用過(guò)去進(jìn)行時(shí)態(tài)，選D。