用介词,副词填空
问题描述：
用介词,副词填空
1.What must i do___spring festival?2.you should point____people in some countries.3.we can not drop litter___the street 4.a child can not work____the age of twelve
答
1.in
2.out 解释为"指出"
3.in 解释为"在街上",记住一定是in the street
4.at 某人多少岁：at the age of ……