It took me hour to finish my homework. A.a B. an C. the

问题补充：

It took me hour to finish my homework.

A.a B. an C. the

答案：

解析：句意：完成我的作业要花费我一个小时的时间。结合语境可知本句中泛指任何一个小时，故用不定冠词。Hour词首音素是元音，故不定冠词用an。选B。