Garbage ia a (1)________ problem in the U.S....

Câu hỏi: Garbage ia a (1)________ problem in the U.S. Every year, Americans produce about 308 billion pounds. A lot of the garbage goes (2) ________the landfills. But many landfills do not have room (3) ________all the garbage. One (4) ________ that one of the garbage problems is recycling. Half of all the garbage in the U.S can be (5) ________and use again. Recycling helps the landfills problem and (6) ________ enough energy too. When people recycling newpapers, they save (7) ________ When they recycling glass, plastic, or cans. They save oil and eceltricity. Recycling is good for everyone.

A. difficultly

B. serious

C. pleased

D. dangerously