Toni Morrison, Nobel Prize-winning American writer, says if there’s a book you really want to read, but it yet, then you must write it.
A. hasn’t been written
B. hasn’t written
C. doesn’t write
D. isn’t written
网友回答
(答案→)A. hasn’t been written
B. hasn’t written
C. doesn’t write
D. isn’t written
解析：考查时态与语态。Yet常与现在完成时连用。句意：如果这本书到现在为止还没有被写出来，你必须去写。