—I’ve spent the whole afternoon reading books.
—I think you’d better go out and get some         air.

The prices of the houses at the moment are still very       .

As a student, we should keep our classroom         .

The old man often feels       because his children live far away.

It’s        for the elephant called Emil Jula to be locked by chain for fifty years.

—Do you think her explanation for being absent is        ?
—No. I think she’s making an excuse.

Soon the bowl was         and the little boy came over for a second bowl of rice.

—You look       . What’s up, sir?
—I can’t find my ticket, but it’s time to check in.

This apple is so         that my teeth can’t stand(忍受) it.

Mary used to be        , but now she enjoys meeting and talking to new friends.