—_did he come?—He came to ask for help.A. HowB. WhenC. Where D. Why

问题补充：

—_did he come?

—He came to ask for help.

A. How

B. When

C. Where

D. Why

答案：

A. How

B. When

C. Where

(答案→)D. Why

解析：本题回答语表示到来的目的，对目的或原因提问可用why，故本题选D。