A. effects; affect    
B. affects; effect  
C. affects; affect    
D. affect ; effect

假定英語課上老師要求同桌之間交換修改作文,請你修改你同桌寫的以下作文.文中共有10處語言錯(cuò)誤,每句中最多有兩處.每處錯(cuò)誤僅涉及一個(gè)單詞的增加、刪除或修改.
增加:在缺詞處加一個(gè)漏字符號(?),并在其下面寫出該加的詞.
刪除:把多余的詞用斜線(\)劃掉.
修改:在錯(cuò)的詞下劃一橫線,并在該詞下面寫出修改后的詞.
注意:
1.   每處錯(cuò)誤及其修改均僅限一詞.
2．只允許修改10處,多者(從第11處起)不計(jì)分.
Nowadays,paper still come from trees. Unfortunately,we use a lot of paper every day. We must
not waste paper and there will not be any trees leaving on Earth. No tree means no paper. We
need 17 trees make one ton of paper. We must start using less paper now because it takes about
100 years of a tree to grow. How can we save paper? Firstly,we can use both the sides of every
sheet of paper. We can reuse envelope. We can choose drinks in bottles instead of drinks in
cardboard cartons. We could use plastic cups and plates instead of paper one. We can also use
handkerchiefs instead of paper tissues. We can use less paper shopping bags and we can reuse
these paper bags later as well.

A. governs                          
B. governor      
C. government                        
D. rule

A. Now that
B. For
C. Although
D. As soon as

A. Now that
B. unless
C. Before
D. As a result

A. after
B. unless
C. until
D. when

A. Now that
B. So
C. Although
D. As soon as

A. Now that
B. After
C. Although
D. As soon as

A. so that
B. even if
C. as though
D. now that