-- do you study for a test?-- By listening to the English programs every day.A. WhyB. Whe

问题补充：

-- do you study for a test?

-- By listening to the English programs every day.

A. Why

B. When

C. Where

D. How

答案：

A. Why

B. When

C. Where

(答案→)D. How

解析：A. Why为什么 B. When何时 C. Where在哪里D. How如何；句意：你是如何准备考试的？通过每天听英语节目。故选D