----What do you know the _____ of are the pig influenza in humans? ---- usually similar to regular human seasonal influenza .
Shortly after publication, the book became ____ because of the writer’s repeated use of the negative word "nigger" to refer to the black Americans.
Nearly 200 people entered the area ______ to mine diamonds in 2000, and eventually had to be driven off by the police.
Hearing the fire alarm, she escaped____ from the office, leaving everything behind, including those important documents.
Unlike the fossil fuels of today, biofuels are renewable sources, which mean that they will not____ easily.
I really don't know how anyonecan _____your constant complaint; no wonder you have lost so many friends.