Question

They were quarreling. How ________ the quarrel ________?

1. A.
   was, come about
2. B.
   did, come about
3. C.
   was, come out
4. D.
   did, come out

Answer 1

B
【巧解导析】这句话的含义为：“他们当时在争吵，这个争吵是怎样产生的呢？”come about为“产生，出现”，come out“出版，真相大白”．两个动词都为不及物动词，没有被动语态．