Air pollution is becoming worse. As is known to all, air to us is ______ water to fish. No one can imagine how human being can live without air.

(单选题)15.（ ） (单选题)14.（ ） (单选题)13.（ ） (单选题)12.（ ） (单选题)11.（ ） (单选题)—Could you help me make a plan?—______. (单选题)—Tom, why don’t you read the newspaper?—Because there is ___ (单选题)—Can I smoke now?—No, you ______. It’s not allowed here. (单选题)—We are going to play against No.3 Middle School.—That’s a s (单选题)Which is ______ park in the city?