Do you know since when it is you have been interested in poetry?A. whenB. untilC. howD. t

问题补充：

Do you know since when it is you have been interested in poetry?

A. when

B. until

C. how

D. that

答案：

A. when

B. until

C. how

(答案→)D. that

解析： 考查宾语从句。宾语从句是一个特殊疑问句的强调句型，结构为：疑问词+ is/was + it + that,在此题中宾语从句应用陈述句语序。故选D。