题目

How the big forest fire has ________ remains to be a mystery. A. broken up       B. broken out            C. taken place    D. turned up 答案： B。句意为：这场森林大火是如何发生的，现在仍是个迷。take place常指按计划进行或在预料之中。This article is written by her father, ________ is now teaching in a university.A.whoB.thatC.whoseD.whom