It is _________ pleasant to take a crowded bus.
A.by no means B.by means of C.by all means D.by any means
It is uncertain _______ side effect the medicine will bring about,although about two thousand patients have taken it.
A. that B. what C.how D.whether
Children who are not active or ______ diet is high in fat will gain weight quickly.
A. what B. whose C.which D. that
People were perhaps more honest a long time ago when life was very different from _________ it is today.
A.which B. that C.what D.how
How can he get the job? He didn’t even ________ it.
A. ask B.send for C. apply for D. apply to
假定你是李华，David是你的美国笔友。他对中国鼓励使用环保购物袋很感兴趣，来信向你询问此事。请你给他写封回信。主要内容如下：
1. 感谢他的关注。
2. 简要介绍相关情况。
3. 谈谈你的感想
注意：
1. 词数100个左右，信的格式已为你写好。
2. 文章必须包含所提供的全部信息，可适当发挥。
3. 参考词汇：concern关注：environment-friendly环保的：
shopping bags环保购物袋
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Dear David,
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours
Li Hua
