Well, the lecture by our Chinese teacher is really ________．You see, he has usually not been on with

Well, the lecture by our Chinese teacher is really ________．You see, he has usually not been on with his lesson for fifteen minutes when half of the students are so ________ that they fell asleep．

A.boring; bored

B.bored; bored

C.bored; boring

D.boring;boring

答案及解析： A