Mr Smith _________ a book about China last year but I don’t know whether he has finished it. ..
MrSmith_________abookaboutChinalastyearbutIdon’tknowwhetherhehasfinishedit.A.haswritt...
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
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