Question

Was it in the waiting room ______ only allows mothers-to-be to enter that you lo

Was it in the waiting room ______ only allows mothers-to-be to enter that you lost your wallet?
A. /
B. where
C. that
D. when

Answer 1

答案C
在考查定语从句的时候利用疑问句的特殊结构来干扰学生的正确选择比较常见。遇到这类定语从句时，最好的办法是先把疑问句还原成陈述句，然后判断谁是先行词，再看关系词在定语从句中所充当的成分，最后确定正确答案。在这个定语从句中的先行词是room, that在定语从句里做主语。"