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
人气：175 ℃ 时间：2020-01-25 20:01:52
解答
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.
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