1)Simon is good at swimming, and last summer he managed to swim across a wide river.
2)He may be sick, or maybe late
3)Tom won these competitions.He must be very happy.
4)It was raining heavily, and Lisa could get wet.But she had an umbrella and a raincoat.
5)Dogs can't walk here.
6)Should I carry your heavy bag?
7)You should spend more time outdoors.
8)They got on the traffic jam yesterday. They should have taken the subway