To sing an English song (正确地), I listen to the CD again and again, and check every word in the dictionary.
It's very (polite) to talk loudly in public.
Subways make our lives (easy) than before.
Now many wild animals are in (dangerous). We should protect them.
To my disappointment, the new movie is so (meaning).
Most people don't like (rain) days because they make people feel sad.