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。