解析：句意：不管是现在做这个手术还是以后做，这主要取决于病人的身体状况。whether...or...，不管是......还是......。

　　8.-Are you familiar __with__ the music？

　　-Yes.The music is very familiar __to__ me，but I can't remember when and where I heard it.

　　解析：be familiar with"对......熟悉；通晓"，多以人作主语；be familiar to"为......所熟悉"，多以事物作主语，人作宾语。

　　9.With this data，he and a colleague were able to test and improve a computer program designed __to model__(model) ocean currents，and publish the findings of their study.

　　解析：句意：利用这种数据，他和一个同事能够测试和改善一个用来模拟洋流的计算机程序，并公布他们的研究结果。design后接不定式作补语。be designed to do sth.设计用来做某事，旨在做某事。

　　10.More than one worker __ has been sent__ (send) to the training center to improve their working skills in the past three years.

　　解析：句意：近三年来许多工人已经被送到培训中心以提高他们的工作技能。in the past three years为时间状语时，谓语用现在完成时，"工人"为动作"送"的承受者，故用被动语态。more than one＋主语，谓语动词用单数。

　　Ⅱ.完成句子

　　1.All variety of goods for daily use are available.(__variety改为varieties__)

　　2.He is famous as his great inventions.(__as改为for__)

　　3.We were all amusing at his stories.(__amusing改为amused__)

　　4.The tiger paced about round its cage，swing its tail.(__swing改为swinging__)

　　5.He attracted by the scene of the foreign lands.(__attracted前加was__)

　　6.Their music has preserved for the next generation.(__preserve前加been__)

7.It's no wonder whether you've achieved so much success.(__whethe