Is it good 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.

Sir, you _______ be sitting in this sitting room. It is for women and children only.

The film was made _______ on a true story [ ]

Try ___ she might, Sue couldn’t get the door open

Look! Our headmaster is standing at the school gate.–It _______ be our headmaster. He is taking a student to the hospital now.