短文改错。
     此题要求你对一段文章改错。先对每一行做出判断是对还是错。如果是对的，在该行右边横
线上画一个勾（√）；如果有错误（每行不会多于一个错误），则按情况改错如下：
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。

My English teacher was always too absorbed in the text in      class that he never looked up. He had habit of asking a         student to translate the text, and he often choose the same    student without realizing them himself. The student, out       of respect, didn"t point it out. Before being called so many   times, the student, his name was Jack, had to ask his friends  for advices. The next day when the teacher asked Jack to       translate the text, Jack answering, "He is absent today,      because of he has a sick sister to look after at home".      "All right," said a teacher, "you translate the text."	1.______       2.______                3.______      4.______            5.______                                         6.______       7.______                 8.______       9.______           10.______
1. too改为so    2. 在had后加a    3. choose 改为chose    4. them 改为it    5. Before改为After 6. his改为whose    7. advices改为advice    8. answering改为answered    9. of去掉    10. the-a
There were _____ students in the hall that you could hardly breath!
[     ]
A. such many B. such a lot of C. very many D. so a lot of
Yesterday afternoon I rushed into a bookstore _____ a shelter from the rain without noticing what kind of bookstore it was.
[     ]
A. only finding B. only to find C. just to find D. just finding
Mary was only too ready to help others, seldom, _____, refusing them when they turned to her.
[     ]
A. if never B. if not C. if any D. if ever
On snowy days, you have to drive very _____ to avoid traffic accidents.
[     ]
A. cautiously B. neatly C. smoothly D. properly
— Going to work today, Brenda? — No. It"s my day _____ today.
[     ]
A. out B. in C. away D. off