1. Your bicycle's brake suddenly does not work . you are riding on it and there are several people in front of you
2. you have just mopped the floors . yourother is walking on the wet floors
3. you maid is cleaning an expensive chinese procelain ceramic
4. your sister a sensitive girl . someone is going to talk about a serious matter to her
^’*Supply the warnings for the following situations.
1. Watch out! There are people in front of you.
2. Be careful! I've just finished mopping the floor.
3. Be careful! That's fragile and also expensive.
4. Please gentle on her, she's very sensitive.