【问】 The pollution question as well as several other issues is going to be discussed when theCongress is in ____again next spring.

A. assembly B. session

C. conference D. convention

答案为B。不知能否选C?

【答】 应当记住，be in session是指“开会”的意思，而be in conference则是指“会谈”、“磋商”、“交换意见”的意思。请对比下列实例：

1. Congress is now in session. (Thorndike)

大会正在召开。

2. Parliament will not be in session again until after Christmas. (LDCE)

议会要等到圣诞节后才再开会。

3. Be seated! This court is now in session. (LDCE)

请坐下。本庭现在开庭。

4. The Director is in conference now. (ALD)

经理正在会谈。

5. The teacher had a conference with each student during the term. (FWF)

教师在一个学期里要同每个学生交换意见。

据此可断定，上道题只能选B(session)。