The manager came over and asked the customer how____选项:a、did the quarrel came about b、the quarrel had come about c、had the quarrel come about d、 had the quarrel come about

问题描述:

The manager came over and asked the customer how____
选项:
a、did the quarrel came about
b、the quarrel had come about
c、had the quarrel come about
d、 had the quarrel come about

b.

b、the quarrel had come about
经理走过来,问客户争吵是如何发生的.
因为后面是宾语从句,要用正常语顺,不能再用助动词,did had等了.