构成神经细胞膜的主要成分是 （     ）

用下列动物或其产品制成中药材时，不能得到批准的是（  ）。

—____?

—It is Tom's book.

There was once a lonely girl who wanted love very much．One day while she was walking in the forest，she found two birds．She took them home and put them in a small1．She was happy to have two“friends”．She2them with love and the birds grew strong．One day the girl forgot to close the door of the cage．The 3of the two flew out of the cage．The girl was afraid that it would fly away．She caught it quickly．She felt glad that she caught the bird before it could fly away．Suddenly she couldn’t4a sound from the bird．When she opened her hand，the bird was already（已经）dead．Her5killed(杀死)the bird! Then she saw6bird jumping up and down7the cage．She could feel its great need for freedom．It wanted to fly into the blue sky．So she let it fly away8．The bird circled(转圈)once，twice，and three times．The girl9as the bird flew．She didn’t care about losing the bird any more．She wanted it to be happy．Suddenly the bird flew closer and landed softly on her shoulder．It sang the10song she had ever heard(她所听过的)．
The fastest way to lose love is to hold it too tightly，and the best way to keep love is to give it wings．

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（＼）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1．每处错误及其修改均仅限一词；2．只允许修改10处，多者（从第11处起）不计分。
    My high school life has made me learn many things. Between them teamwork is the most significantly for me. In fact, I didn't realize its importance after I was elected monitor. In the begin, I did almost all the duties myself, however, others students cared little about class activities. Therefore, I worn out and depressed. Then I turned to my head teacher but he advised me to cooperate with others. Gradually, I realized the strengths of my classmates and managed to have everyone to play a part in class. It is working in teams instead of on my own which has freed me of trouble and make my work more efficient.