词语释义，选出与句中划线部分意义最相近的解释，并将标号填入题前括号内。
1. Please take care of the baby.
A. look at
B. look after
C. look up
D. look for
2. I like bananas better than apples.
A. prefer, to
B. want, than
C. hate, than
D. like, than
3. Swimming is a good way to stay healthy.
A. keep fit
B. keep health
C. stay health
D. stay at home
4. Please go and ask him about it at once.
A. fast
B. soon
C. right away
D. once
5. Last night Jim had a good time at home.
A. have fun
B. enjoy oneself
C. enjoyed oneself
D. enjoyed himself
