Question

—Do you know__________going to stay in London?

—No, I don’t. Maybe a few days.

A. when he is B. how long he is

C. when is he D. how long is he

Answer 1

B

【解析】

试题分析：句意：-你知道他要呆在伦敦多久吗？-不，我不知道。也许几天。When何时；how long多久。根据答语中Maybe a few days可知此处是问多长时间。在宾语从句中只能使用陈述句语序。所以选B。

考点：考查疑问词辨析。