2.The specific use of leisure______（每一人都不同）

　　3.The ship ' s generator broke down and the pumps____________________（ 不得不用手工操作 ） instead of mechanically.

　　4.Although punctual himself, the professor was quite used______________（ 习惯了学生迟到 ） his lecture.

　　5.I prefer to communicate with my customers ______（ 通过写电子邮件而不是打电话）

　　6.After the terrorist attack, tourists ______ （ 被劝告暂时不要去该国旅游）

　　7.（ 他把自己奉献于社区工作 ） ______ and is passionate about what he is doing.

　　8.Man should not exploit the natural resources ______ （ 以牺牲其他物种为代价 ）.

　　9.When Sandy recovered from cancer, her doctor ______ （ 把此归因于她对未来的信念 ）.

　　10.At the end of his speech, the school master encouraged the children to work hard ______ （ 不要让父母失望 ）.

　　11.In the budget for this building, they failed to __（ 考虑价格增长的因素 ）.

　　12.Only after I slapped him on the back ____（ 他才发现我并高兴得叫起来 ）.

　　13.I didn ' t even speak to him, ____（ 更不用说与他讨论事情 ）.

　　14.Some young people would rather try hard themselves to go through life than _____（ 求助于他们的父母 ） with a sense of guilt.

　　15.The victim _____（ 本来有机会活下来 ） if he had been taken to hospital in time .