从A、B、C、D四个选项中，选出与所给句子画线部分意义相同或相近并能替代的那一项。
1. She got mad at me and said she didn't want to be my best friend any more.[ ]
A. was angry with
B.was angry at
C. was disappointed with
D.was disappointed at
2. Lucy made a decision to tell her father about that.[ ]
A. wrote a letter
B. sent an e-mail
C. decided
D. decided on
3. At first，the girl felt a bit nervous. [ ]
A. worried
B. unhappy
C. confident
D. pleased
4. 一 I’m afraid I can't follow you,sir. Can you speak more slowly?
-Of course. [ ]
A. find
B. run after
C. understand
D. keep
5. -Is this Mr Chen’s car？
-I don't think so. He can't afford to pay for this kind of car. A. is too poor to[ ]
A. is too poor to
B. is able to
C. is rich enough to
D. doesn't want to