第五步：实践与进步

　　将下面的句子补完整
　　1. Whyare…? For one thing, … For another, …
　　2. Another reason why I dispute the above statement is that…
　　3. Itgives rise toa host ofproblems .
　　4. There are numerous reasons why…, and I shall explore here only a few of the most important ones.
　　5. It willexert profoundinfluence on…
　　6. A multitude of factors couldaccount for thechangein…
　　7. In 1999, itincreased from 5 to 10 percent of the total.
　　8. By comparison with 1998, itdecreased from 10 to 5 percent .
　　9. … account(s) for 15 percent of the total.
　　10. There were 100 traffic accidents in April, and an increase of 5 percent in a five-month period.
　　By 1999,only three quarters of college-agedwere against…,
　　(as compared with)last year, the same population preferred to (liked)…

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