Many people can't learn any lessons from the mistakes they've made _____ they get hurt somehow.
A．whether B．unless C．if D．as
Painting from still images leads to a loss of sensitivity, which is _____ to an artist.
A．absolute B．urgent C．especial D．vital
——Can I get out in the daytime?
——No. The school rules state that no child _____ be allowed out during the day, unless accompanied by an adult.
A．shall B．need C．will D．can
People have come to understand _____ prevents so many Americans from being as happy as one might expect.
A．that it is why B．what does it that C．why it does that D．what it is that
Her daughter was so lovely _____ little girl that everybody in the street would smile at her at _____ first sight.
A．a; / B．the; a C．the; the D．/; the
假如你是李华，针对目前有些中学生购买彩票的现象，给21st Century 报社编辑写信，并谈谈自己的看法，其中包括以下要点：
1．弊远大于利；
2．中学生没有经济来源，容易诱发一些不良行为；
3．从当前说，会影响学习；
4．从长远看，认为仅靠运气就能成功的观念，对学生的一生产生危害。
注意（1）信的开头已经给出；
（2）必须包括以上要点，可适当发挥，但不要逐句翻译；
（3）字数100左右，不包括开头。
Dear editor,
At present, many high school students are addicted to buying lottery tickets and they seem to have good reasons. However, I’d like to talk about my views on the phenomenon. ___________
_______________________________________________________________________________
Yours,
Li Hua
