It is wise to put milk on a shelf close to the bottom because it is especially _______ to temperature changes

Please keep ______; I’m taking a photo of you all. Say “Cheese”.

 After the long journey, the three of them went back home, ___________.

My brother likes eating very much but he isn't very _____ about the food he eats.

I was_______ about it. I thought you were responsible and that’s why I scolded you. Please forgive me.