根据汉语意思完成英语句子,每个空格填一个单词。
1.对于学生来说,每天读书半小时是很有必要的。
It’s necessary for students to
_____________ _____________ for half an hour every day.
2.要想身体健康,必须做到平衡膳食。
To stay healthy, we must have a
_____________ _____________.
3.遇到摔倒受伤的老人时,我们不应该为了远离麻烦而漠然走开。
When we meet old people who fall down and get
hurt, we shouldn’t go away indifferently to _____________
_____________ _____________ trouble.
4.这个书架是由一些旧纸箱废物利用做成的。
This bookcase is ______________
______________ ______________ some used paper boxes.