按要求完成下列各句。

1. My father prefers staying at home to going shopping on weekends.(改为同义句)

    My father prefers ______ ______ at home ______ ______ go shopping on weekends.

2. Although he lives there alone, he never feels lonely.(改为同义句)

    He lives there alone, ______ he never feels lonely.

3. Whatever you do, don't sleep all day. (改为同义句)

    ______ ______ ______ you do, don't sleep all day.

4. The silk is produced in Suzhou. The silk sells well.(合并为一句)

    The silk ______ is produced in Suzhou ______ well.

5. There were many people waiting at the doctor's.(改为含有定语从句的复合句)

    There were many people ______ ______ ______ at the doctor's.

邻近洞壁的岩体受到集中应力的作用，洞室开挖的结果是在围岩中形成3个应力分布区，即应力降低区、应力升高区和天然应力区，下列对图中标示正确的是（）。

A.Ⅰ区为应力降低区，Ⅱ区为应力升高区，Ⅲ区为天然应力区

B.Ⅰ区为天然应力区，Ⅱ区为应力升高区，Ⅲ区为应力降低区

C.Ⅰ区为天然应力区，Ⅱ区为应力降低区，Ⅲ区为应力升高区

D.Ⅰ区为应力降低区，Ⅱ区为应力升高区，Ⅲ区为应力升高区