—How ____ the medicine tastes!—Yes. But the medicine will really work soon after you take it.

If you don’t work ______ enough, I don’t think your dream will come ______.

Everyone likes Frank because he talks to others_______________.

People who eat a balanced diet should be ________ than those who only eat hamburgers.

—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.