a. A: Its hot today. Let’s go to the beach
B: Ok, Good idea
b. A: It’s hot today. Why don’t we go to the beach?
B: Ok, Good Idea
Let’s (do something) and why don’t we (do something) have the same meaning. They are used to make suggestions about activities for you and me.
Let’s = let us
People use why don’t you to make a friendly suggestions, to give friendly advice
Practice
Give suggestions!
1. I am thirsty
2. I am sleepy
3. I have headache
4. It’s too hot in this room
5. I have a toothache
6. Brrrrr. I am cold
7. I am broke
8. I am hungry
9. I want to share my idea. What should I do?
10. My blog template is so-so. What should I do?