II. Complete the sentences with cause or reason. 1. The... of the fire was the lightning. 2. Speeding is often the of car accidents. 3. I don't see any why you can't come with us. 4. The... for his absence is his illness. 5. The floods are usually of the infections.​

1. The cause of the fire was the lightning.
2. Speeding is often the reason of car accidents.
3. I don't see any reason why you can't come with us.
4. The reason for his absence is his illness.
5. The floods are usually the cause of infections.