—Is it necessary to look up every new word when I come across it in reading?—No. You ________， because you are likely to guess the meaning from the context.

—Must I clean the blackboard now?    —No, you _______ clean it later.

--Whose T-shirt is this? --It ____ be John’s. It’s ______ small for him. 

—You must have met him the other day.　　—Oh, no, I ________.

Tina_________wait _________ see her parents .