The sentence structure of “We call them mooncakes.” is _____.

下列句子横线处依次填入的词语，最恰当的一项是（ ）①他忘不了那一段 的往事，也忘不了曾帮助过他的人。②各高校要在现有基础上， 大学生心理健康预警机制，开设心理健康选修课。③走进国家图书馆那古朴庄严的阅览大厅，任何一个参观的人都会不由自主地放轻脚步，甚至屏住呼吸，以免 公众专注的阅读。④ 投资股票比投资开放式基金风险大得多，还是有不少人选择投资股票。

k you should complain—, of course, you are happy with the way things are

What are you going to give your mother for her birthday—I’m not sure. But I’ll buy her .

What do you do with the used books?–We will _________ to the children in the poor areas.A．give themaway