Cars, buses and bikes ________ stop when the traffic lights turn red.

 -- Whose French book is it?-- It __________ be Lucy’s. Look! Her name is on the book!

—What will the weather be like tomorrow?—It _______ be rainy, cloudy or sunny. Who knows?

—Where___________I meet you tomorrow morning ?—I haven’t decided the place. But I’ll call you soon.

--- Must I finish my homework now?-- No, you ________. You can go home now.