The boy didn’t go to school ______his illness(疾病)。[ ]

You can go to the library with _______ and ______ sister.

Is this your sister’s key, John?— No, it isn’t. ______ is in the bag.

________ he still _________ in his office? —No. He __________ back home.

________, everyone ! I have some good news to tell you.—- What’s it ?