此题要求改正所给短文中的错误。对标有题号的每一行作出判断：如无错误，在该行右边边横线上画一个勾(√)；如有错误(每行只有一个错误)，则按下列情况改正：
此行多一个词：把多余的词用斜线(＼)划掉，在该行右边横线上写出该词，并也用斜线划掉。  
此行缺一个词：在缺词处加一个漏字符号(∧)，在该行右边横线上写出该加的词。此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。注意：原行没有错的不要改。
In this textbook, you often have to work in pair and groups.                    __________
This gives you an excellent opportunity to practice speak English.                 __________
When you work with others, be sure to say English all the time.                           __________
Change partners wherever you can so that you can practise                            __________
your English with as many classmates as possibly. Become                           __________
more aware to the number of times you speak in a group and                        __________
how much you say. Through discussions with partners and        members              __________
of groups, you not only improve your English but also developed                 __________
your communication skills, learn ways to work well in team                         __________
and benefit from other people knowledge and experience.                              __________