5.这个which起什么作用
Dorothy was always speaking highly of her role in the play,, of course, made the others unhappy.
A. whoB. whichC. thisD. what
许多同学认为此题句子结构比较混乱，逗号太多，难于理清头绪。请同学们先看下面一句：
Dorothy was always speaking highly of her role in the play, made theothers unhappy.一般同学都知道此题应填关系代词which，用以引导一个非限制性的定语从句。事实上，上面一题就是根据此题演变而来的，只不过在which与made之间插入了一个of course。所以上面一题应选B。
(1) The meeting was put off,, of course, was exactly what we wanted.
A. whoB. whichC. thisD. what
(2) He was very fond of speaking French,, indeed, he spoke well.
A. whoB. whichC. thisD. what
以上两题答案均选B，which引导的为非限制性定语从句，其后的of course和indeed为插入成分。
