此题要求改正所给短文的错误。对标有题号的每一行做出判断：如无错误，在答题卡该行右边横线上划一个勾（√）；如有错误（每行只有一个错误），则按下列情况改正：
该行多一个词：把多余的词用斜线（\）划掉，在答题卡该行右边横线上写出该词，并也用斜线划掉。
该行缺一个词：在缺词处加一个漏字符号（∧），在答题卡该行右边横线上写出该加的词。
该行错一个词：在错的词下划一横线，在答题卡该行右边横线上写出改正后的词。
Time seem limited for us Senior Three students. 76_________
Therefore, more and more student are studying from early 77_________
morning till lately afternoon, even during the ten-minute 78_________
break. In my opinion, Take a break between classes is 79_________
not necessary. Otherwise, we will feel tired both physically 80_________
and mentally. During the break, we should do something 81_________
to get rid of tiredness. What they need is to have a real rest, 82_________
instead getting more tired. My break is always pleasing. 83_________
Sometimes I take some simple exercise. Sometimes I had a free 84_________
chat with my classmates or just take a walk outside. While the 85_________
next class begins, I feel fresh again.
表示脱去的氢原子）和脱氢生成物的结构式填入下表空格中。 
