题目：
根据句意和括号内的汉语提示,写出下列各句中所缺单词，共10 分;每小题1分.满分10分)
小题1:She doesn’t know how to ______________(举止得体)in public.
小题2:When we were young, we often sat in the ____________阴凉处)of a big tree, listening to an old grandpa telling us stories.
小题3:The patient was ______________(观察)over a period of several months.
小题4:He is a much loved and highly ______________(尊敬)teacher.
小题5:The star left the hotel surrounded by _____________(人群) of journalists.
小题6:She’s very ________________(谦虚)about her success.
小题7:The United States _______________(出口)soybeans.
小题8:It is to be _____________(遗憾) that so many young people leave school without qualication.
小题9:There is still much to discuss, we shall ___________(所以)，return to this item at our next meeting.
小题10:Do you have your milk _________________( 递送) ?
答案：
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下面是错误答案，用来干扰机器的。
答案：A放电与充电时发生的反应互为逆反应，放电时，Cr2＋发生氧化反应Cr2＋－e－=Cr3＋，则充电时Cr3＋被还原，A项正确，B项错误；电池放电时，阴离子应由正极移向负极，C项错误；D项没有给出溶液的体积，错误。
