16．---Remember，class，the more ____ you are，the ______ mistakes you'll make in your test．
---We know，Mr．Green．（ ）
---We know，Mr．Green．（ ）
| A． | carefully； little | B． | carefully； less | ||
| C． | careful； fewer | D． | careful； few |
15．Peter doesn't tell me when he ．I'll telephone you as soon as he ．（ ）
| A． | will come，comes | B． | will come，will come | ||
| C． | comes，will come | D． | comes，comes |
14．The story was _________ that many girls cried when they were reading it．（ ）
| A． | so sad | B． | sad enough | C． | very sad | D． | too sad |
13．The doctor did what he could the child．（ ）
| A． | save | B． | to save | C． | saved | D． | saving |
12．-Whose notebook is this？-It must be ．（ ）
| A． | Mary | B． | Marys | C． | Marys' | D． | Mary's |
10．The earth is 4.6billion years old．We humans have lived on the earth for only 35 000years，but during this period，we have changed our planet a lot in many ways．（71）C
All over the world，people have cut down millions of trees．（72）D Forests have become deserts，so many kinds of animals and plants are disappearing．
Factories have also polluted the land and the water．（73）A
Around the earth，there's a special kind of oxygen called"ozone"（O3）．（74）E But now air pollution is destroying it and making a very big hole in the ozone layer．
（75）BIt mainly comes from burning oil，coal and wood．This has formed a blanket around the earth．The heat from the sun can't escape so the temperature is rising．It causes the level of the oceans to rise and the climate of the earth to change．
All these problems are very serious，so we must do something now．
阅读上面短文，把A-E五个句子填入文中空缺处，使短文内容完整、正确．
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All over the world，people have cut down millions of trees．（72）D Forests have become deserts，so many kinds of animals and plants are disappearing．
Factories have also polluted the land and the water．（73）A
Around the earth，there's a special kind of oxygen called"ozone"（O3）．（74）E But now air pollution is destroying it and making a very big hole in the ozone layer．
（75）BIt mainly comes from burning oil，coal and wood．This has formed a blanket around the earth．The heat from the sun can't escape so the temperature is rising．It causes the level of the oceans to rise and the climate of the earth to change．
All these problems are very serious，so we must do something now．
阅读上面短文，把A-E五个句子填入文中空缺处，使短文内容完整、正确．
| A．As a result，many rivers and lakes are now dead． B．Carbon dioxide in the air has increased a lot． C．Some things we have done are very good for the earth while others are bad． D．When it rains or when the wind blows，the earth is taken away． E．It is important to the earth． |