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

Whose schoolbag is this?—It ___________ be Mary’s. It has her name on it.

This isn’t ______ iPad, mine looks the same as ______ .

.After John stayed in shanghai for a couple of days, he got the impression _________the city was very fascinating.

Would your parents like to go to Taiwan for a vacation with you? —They’d love to, but ______of them has enough time .