【题目】 Another reason is_____ after a baby is born, fathers follow the “traditional” roles. That is, the mother looks after the baby and the father works outside.
A. why B.that C.which D.when
在线课程【答案】B
【解析】考查表语从句。Another reason是主语，is是系动词，后面是表语从句，这里用that引导表语从句，不在从句中充当任何成分。故选B。