____all the rooms in the house ,the sitting room is_____.

题目

____all the rooms in the house ,the sitting room is_____.
A In,the  bigger   B Of ,the  biggest C At,the most big D Of,the bigger

答案

填 B.Of ,the biggest
(Of) all the rooms in the house,the sitting room is (the biggest).
在房子里所有间房,客厅是最大的.