Time goes by so fast . We must never miss the chance to show love for our parents and make them _____ how much they mean to us .
— You should be careful when ________.— Yes, I will. I’d like to know when ________ to have a rest.
I prefer ________ at home ________ some reading to ________ shopping.
It’s selfish ________ him ________ the cakes with others.
This is _______ song I have introduced you many times. Isn’t it _______wonderful one?
--- Come on, everyone! We must be the first to complete the poster for the charity show.---Sure.____________.