3. That room is large enough to hold ten visitors
4. Although my sister was tired, she helped me with my homework
5. Judy's car is being repaired by the mechanic

VII
1. i cannot go fishing because i am looking after my grandmother.
2.we recycle cans and plastic bags to save natural resources
3.solar energy  is cheapper and cleans more effectively than source power
4. Why dont you get plumber to check the pipes?
5.although it rained heavily, we went to the cinema yesterday.