Some of her best-loved photos are ______ display in this exhibition.[ ]

Are these books ________? —No, they are not mine. They belong to _____.

May I take the magazine out of the reading room?– No, you can’t. You read it here. It’s the rule.

John _____ go there with us tonight, but he isn’t sure about it.

If a=”4,” b=”5,” what’s the answer to the question “ a + 2ab +1 =?”—.