Помогите с тестом на английском

1. Jimmy is having his hair cut by the hairdresser.
2. He had his computer fixed by someone.
3. David is having his car repaired by the mechanic tomorrow.
4. Norman had pizza delivered to him by someone.
5. Do you have someone mow your lawn?
6. Will you have the secretary type your letters?
7. Are you having someone install an alarm system for you?