Peter, perhaps John, ____ playing with the little dog.

The poet and ______ pianist is going to give us a talk this afternoon. 

He is the only one of the students who __________a winner of scholarship for three years.

下列每组字母中不含元音字母的是　　　　　组。

– A number of students ____ in the dinning hall.-- Let me count. The number of the students ____ about 400.