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

So far, all of the infected people are thought _______ the flu after direct contact with sick birds.

There_____ to be a wasteland and now stands a building.

Chinese people have been using paper for over______ years.

Hello, Sandy. This is Jack. What are you doing? -I’m watching a match. It started at 7 p.m. and _____ on for another half an hour.