Complete the sentences with suitable parts of the idioms.

Write one word in each gap.

I don't think that a city quest will be the icing on the [ ]! It's too much!

I have so little time! There's no chance I'll have my cake and [ ] it!

Tina opened a handicraft shop on Instagram, but her works didn't sell like [ ] cakes.

Don't worry, this task will be a piece [ ] cake for us!