The weather turned out to be fine yesterday. I ________the trouble to carry my umbrella with me. 

 If Doric continues doing things like that, he ______ face the music one day！

My sister advised me that I _____ accept the invitation.

—It's no easy task to catch a ticket on a website that receives 1 billion clicks daily.—I can't agree with you more. There ________ be errors for every single step.

— Must I finish the exercise at school? — No, you don’t have to. You          do it at home.