Question

Change into causative
1. John will ask a famous band to play music at his party
2. We can invite a brigade to install the alarm system
3. William is going to ask his friends to arrange a party .

Change into the passive.
1. He has finished all the tasks
2. Fred has to meet the friends
3. I used to do a lot
4. He likes people giving him advice
5. Do you plant trees every spring?
6. I didn't translate the text
7. They have been building the house for three years

Answer 1

1.     John will have music played at his party.
2.     We can have the alarm system installed.
3.      William is having a party arranged.  

1.     All the tasks have been finished by him.
2.     The friends have to be met by Fred.
3.     A lot (of things) used to be done by me.
4.     Advice is given him by people he likes.
5.     Are trees planted by you every spring?
6.     The text wasn`t translated by me.
7.     The house has been built by them for three years.