Sally took a photo of her friends while they _________ computer games.

Are these books ____.— No. they are not mine. They belong to ______.

How do you spend the coming May Day holiday?— I haven’t decided. I wonderduring the holiday.

Longlong’s father is a businessman. He is very busy, so Longlong only talks _______ him _______ the phone.[ ]

Where did you go on vacation?–I ___________.