Where your friend ?A. is; come fromB. do; come fromC. are; fromD. does; come from

问题补充：

Where your friend ?

A. is; come from

B. do; come from

C. are; from

D. does; come from

答案：

A. is; come from

B. do; come from

C. are; from

(答案→)D. does; come from

解析：句意：你的朋友来自哪里？这里句子的主语your friend是第三人称单数，所以谓语动词也用单数，故排除BC；come from来自，是动词短语，变疑问句时加助动词do的适当形式；故排除A；故选D。