Solution:
Here are some suggestions for each situation:
- Your friend is thirsty. Offer him / her something.
How about a glass of water? - It snowed last night. You want to go out and make a snowman. Suggest this to your friends.
Why don't we go out and build a snowman? - Your grandma cannot open the marmalade jar. Offer to open it for her.
Shall I open that for you, Grandma? - You and your cousins are deciding where to spend a holiday together. Make a suggestion.
What about going to the mountains this year?