1 . A ship in harbor is safe, but that is not________ ships are built for. (用适当的词填空)

2 . It seemed that I had become________ my parents had wanted me to be. （用适当的词填空）

3 . The number of people working and living in big cities has declined，which is exactly________ we expected. （用适当的词填空）

4 . So, try filling up your time with other work. This is _________there is a saying that if you want something done, ask a busy person to do it. (用适当的词填空)

5 . An accident happened on the main road. That is___________ traffic seemed to slow suddenly. (用适当的词填空)

6 . My mother suddenly fell ill. That’s ________I didn’t appear. (用适当的词填空)

7 . The family spent a great deal of money decorating their new house, and that is ________ they have been stuck in debt so far. （用适当的词填空）

8 . In winter, these mountains are covered in sheets of white frost. This is________ the terraces look like. （用适当的词填空）

9 . Our city is not ____________ it used to be. (用适当的词填空)

10 . Modesty (谦虚) is a kind of good quality, which is________ makes you the best. (用适当的词填空)