My pen doesn’t work well. Could I borrow _____, John?

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

I’m talking to you, Jack. Please listen to ______ carefully.

Mum, will you buy me the new iPad after the Entrance Examination?— I’m afraid I ________, dear. We are short of money now.

_____ will you go back from Hong Kong?—In 3 days.[ ]