Explain the words/phrases in bold. Use some to complete the sentences. 1 You mustn't be rude to your teachers. You should

1. You mustn\'t be rude to your teachers. You should respect them.

2. Lucy gave her parents a kiss and then went to bed. 

3. Being impolite to others is not acceptable (good) behavior. 

4. Apart from the host (hostess) he didn\'t know anyone at the party.

5. She kissed her daughter on the cheek before she left for work.