— do you like English classes? —Because it’s very interesting. A. Why B. Who C. How

问题补充：

— do you like English classes?

—Because it’s very interesting.

A. Why B. Who C. How

答案：

解析：句意：——你为什么喜欢英语课？——因为它是非常有意思。A. Why为什么；B. Who谁；C. How如何。根据Because it’s very interesting. 可知此处是对原因提问，故选A。