Put in "must" or "have/has" to. 1) i'm tired. i go to bed early. 2) john go to school on saturdays. 3) we get another dog soon. 4) this is a great book. i read it. 5) a soldier obey orders. 6) we go to london for a meeting. 7) i think we pay in advance. 8) you really visit us soon. 9) i try to spend more time at home. 10) you go through carlisle on the way to glasgow.