There is a lot of smoke coming out of the teaching-building there.—- Really? It _____ be a fire, most probably.

－Bob, have youpacked yet－Yes, Mum.－Look over andthatyou have taken everything you need.

All of my classmates couldn’t wait ______ off the bus.

Let’s ask our teacher for help. —

There’s ________ water in the bottle,besides, I am also ______ hungry。