Question

The teacher suggested the dictionary ______ at once.

1. A.
   be referred to be bought
2. B.
   be referred to being bought
3. C.
   referred to be bought
4. D.
   referred to being bought

Answer 1

C
这题考查过去分词做定语和虚拟语气的用法：referred to是过去分词做定语，修饰the dictionary，又因为suggest表示“建议”时，宾语从句用sb （should） do的虚拟语气，选C。