1. The factory was built in a secret place, around ______ high mountains.
    A. which was               B. it was      C. which were              D. them were
最佳答案是C，around which were high mountains 是一个由“介词+which”引出的非限制性定语从句，而在该从句中，主语是 high mountains，around which 是表语，所以句子谓语应用复数were，而不是用单数 was.
 2. A man with a bleeding hand hurried in and asked, “Is there a hospital around ______ I can get some medicine for my wounded hand？”
    A. that                    B. which      C. where                   D. what