—Whose dictionary is this?
—It ______ be Jack’s. Look, his name is on Page 1.
must
need
can’t
could
— Excuse me, could you tell me _______? — There’s an e-shop on the third floor. You can make it there.
— May we leave the classroom now? — No, you _______. You _______ to leave until the bell rings.
— Why don’t you choose the red tie? — For me, it doesn’t _______ my shirt very well.
_______ of the materials I listened to at the beginning of the exam _______ easy.
The cat with a white tail isn’t _______. I think it belongs to _______.