Complete the sentences. Use the correct form of the words and for or since.
We’re tired because we ___________ (run) ___________ hours.
I ___________ (wait) for her ___________ 40 minutes!
He ___________ (watch) TV ___________ 9 am.
She’s red because she ___________ (lie) in the sun ___________ this morning.
They ___________ (walk) in the rain ___________ an hour and they’re really wet.
Dad’s exhausted because he ___________ (work) in the garden ___________ he got up.