5 . I was observing and copying the behaviors of my cat ________ my mom came in, ________ with shock.

A．when; freezing

B．while; frozen

C．when; frozen

D．while; freezing

8 . 选词填空

calm down,       take a breath,       be crazy about,       let down,       apologize to,    concentrate on,     help out,     work out,     communicate with,     be filled with

1. In all those years he never worked hard, which ________ his parents ________.
2. A swimmer can’t swim under water very long, because he must ________.
3. I have ________ this film since I first saw it on TV.
4. In my opinion, parents and children should ________ each other and show respect for each other.
5. The famous actor keeps fit by ________ for an hour every morning.
6. If you keep a positive attitude, your life will ________ happiness.
7. ________ the good things about the Internet.
8. Hearing what Father had said, the crying child soon ________.
9. You must ________ your parents for being so rude.
10. He is the person who ________ me ________.