Underline the correct word, then try to explain the idioms. Are there similar idioms in your language?
1. Let’s put on some music. It’s as silent/quiet as the grave in here
2. He’s got food poisoning and he’s been as sick as a dog/cat all week
3. Don’t worry about Maggy; she’s as though as old shoes/boots
4. The Martin children are not at all alike. They’re as different as chalk and cheese/milk
5. I’ll look after Jo anytime. Really, she’s as good as silver/gold
6. Ben can’t wait to get started on the project. He’s as keen as ketchup/mustard