—Do you like our English teacher? —Yes. I think his class is very .A. interestB. interests

问题补充：

—Do you like our English teacher?

—Yes. I think his class is very .

A. interest

B. interests

C. interested

D. interesting

答案：

A. interest

B. interests

C. interested

(答案→)D. interesting

解析：句意：-你喜欢我们的英语老师吗？-是的，我认为他的课非常有趣。interest 名词或动词，兴趣，使感兴趣；interests 名词复数，或动词的三单形式；interested 有趣的，形容词，修饰人，指某人对某事感兴趣；interesting 有趣的，修饰物，指某事使某人感兴趣。这里是说老师的课令人感兴趣，故用interesting，选D。