The family ______ at the lunch table when someone came to tell them what had happened at ______.

问题描述:

The family ______ at the lunch table when someone came to tell them what had happened at ______.
A. were sitting; Mr BrownB. weresitting; Mr Brown’s
C. was sitting; Mr BrownD. was sitting; Mr Brown’s
主要说明 happen at下面到底加什么...谢谢``

B
family当指一家人的时候要用复数,单个就用单数;happen at后接地点,如果是某人的话介词用on