1 Since the ground is wet,it must have rained.
2 We decided to stop working as it was late.
3 We can go swimming as it is so hot.
4 Since you have no money,you can't buy any food.
5 I like the boy because of his honesty.
6 Because he was tired,he sat on the grass.
7 He chose to stay at home because of the hot sun.
8 The girl asked her mother for advice because the girl was upset. 再答： (:
