Mr. Zhang teaches us and we all think his classes are interesting and easy.A. good B. well

问题补充：

Mr. Zhang teaches us,and we all think his classes are interesting and easy.

A. good B. well C. sure

答案：

解析：句意：张老师教我们，我们都认为他的课有趣的也是比较容易懂的。这里用副词来修饰动词teach故选B。