John wastolearn the news that he was rejected by the firm.

My little brother is funny. He often makes me _____.

She will tell us why she feels so strongly that each of us has a role _______ in making the earth a better place to live on.[ ]

_______ is important for us to learn English well.

Experts warn that global warming will cause dramatic climate changes, including more ________ floods,heat waves and droughts.[ ]