do you study for a test?-By asking the teacher for help.A. WhyB. WhenC. WhereD. How

问题补充：

--- do you study for a test?

---By asking the teacher for help.

A. Why

B. When

C. Where

D. How

答案：

A. Why

B. When

C. Where

(答案→)D. How

解析：根据答语内容By asking the teacher for help，可知答案为D