Question

is this a sentence fragment? before the town of kennecott, alaska, was deserted in the 1930s, it was home to a thriving copper mine and mill, a hospital, a school, and a skating rink. yes no

Explanation:

该句有完整的主谓宾等结构，“it”是主语，“was home to...”是谓语和宾语部分，“Before the town of Kennecott, Alaska, was deserted in the 1930s”是时间状语从句，不是句子片段。

Answer:

no