Many teenagers_______ the old and they often offer their seats to the old on buses.

If we ______ take environmental problems seriously, the earth _______ worse and worse.

He’s going to France in August, and staying ______ September. [ ]

Andy is really honest boy. — Yes. That’s why he is most popular student in his class.

Which of the following words has the same sound as the “ed” in the word “danced”?— Let me see. That’s .