【題目】If plastic and rubber are burnt, they'll give off(poison) gases.

【題目】Recycling also helps control environmental(pollute) by reducing the need for waste dumps(垃圾堆).

【題目】People volunteer to express personal values, to expand their range of experiences, and(strength) social relationships.

【題目】The tourists began to make(prepare) for the long journey.

【題目】If they(治療) in time, the injured would have been saved.

【題目】After living in Paris for fifty years he returned to the small town ___ he grew up as a child.

【題目】I was so frightened that I closed my eyes and(絕望地) threw myself at that guy like a bullet—and stopped.

【題目】Now he is in pof a big company and has a high position in society now.

【題目】The reason ______ he resigned was ______ he didn’t get on well with the boss.

【題目】He described himself as a (受害者) rather than participants in the scandal.