Question

【题目】She and her family bicycle to work, _________ helps them keep fit.

A. which B. who C. as D. that

Answer 1

【答案】A

【解析】考查非限制性定语从句。句意：她和家人骑自行车去上班，这有助于她们保持健康。“____ helps them keep fit”是非限制性定语从句，该从句修饰整个主句，引导词在从句中做主语，故该从句应用关系代词which引导。A选项正确。