—I think so, and it is very ____ in cities.
Many people don't like ________ to work by car because the traffic is ________.
I like the countryside because the air is ________ and life is ________ there.
—当然。
—I'm ________ ________ my pen. Could you help me?
—Sure.
Look! There are many ________ ________ in the swimming pool.
The book is very ________, but the ________ is high.