—What are you doing now,Jim?—I'm surfing the Internet.I want to find ______ on it.
There are ______ people in the room, so it’s very crowded (拥挤的) .
We are ______when we hear the _______news -we don’t have classes tomorrow.
I ________you yesterday afternoon,but you ________at home.
The food is ________, but I still don’t have ________ to buy.
------ Is _______ here ? -------No, Bob is not here.