I'm guessing a dummy run is something that you use a test dummy to see how something will work, example a crash dummy were they put inside a car that crashes to a solid object . a trial run/procedure kind.
(hope this help)
Answer:
1.I couldn't use my phone because I forgot to pay my phone bill
2.she was feeling sick so she had to stay at home
3.i was angry that my boss made me stay at work until 9pm
4.they play football because they love it
Explanation:
hope this helps x