1. It is no good saying(say) such ugly words to him.

2. Being laughed at(laugh at) is what I hate most.  

3. Not being bathed(bath) makes the baby smell unpleasant.  

4. Planting many trees is(be) very good for our environment.

5. It is a waste of time persuading such a person to join us.

6. Being educated(educate) in Beijing University is the dream of many students.  

7. Not having received(receive) a reply made the manager worried.