—What do you think of the report about the air pollution on TV last night?—I think the situation is so that we should take action to protect the environment.

题型：单选题题类：模拟题难易度：普通

—What do you think of the report about the air pollution on TV last night?
—I think the situation is so that we should take action to protect the environment.

A、serious B、amazing C、necessary D、fantastic