Haven’t I told you already that you ___ have my answer tomorrow morning?

“Mike is often absent from class.” “Tell him he _     _ answer for it if he goes on behaving like that.”

—Must I finish the homework tonight?—No, you        .You can finish it tomorrow.

Without gravity, we _____ walk on the ground as freely as we do now. 

— What are you doing this Saturday?— I’m not sure, but I go to the Rolling Stones concert