用worth,worthy,worthwhile完成下列句子：
问题描述：
用worth,worthy,worthwhile完成下列句子：
1、It is not _______________my time and energy.
2、Their achievements are________________of the highest praise.
答
三个词的用法
be worth sth
be worth doing sth
be worthy of sth
be worthy of being done
be worthy to be done
it is worthwhile to do/ doing sth.两者可互换
所以应该明白了吧