—Couldyoutellme       now,Mary?  —Amagazineaboutscience...

问题详情：

— Could you tell me        now, Mary?

   — A magazine about science.

A. what are you reading        B. what you are reading

C. what were you reading       D. what you were reading

【回答】

B

知识点：宾语从句

题型：选择题