第1个回答 2011-09-26
这是定语从句。分成两句,你就明白了:
1 The use helps to save a lot of money.
2 They are making use of the waste
再合并起来:the use (that(==use))they are __making _(_use_把这个use去掉_)of__ the waste helps to save a lot of money.
再进一步:The use (THAT) they are ___MAKING OF _____ the waste helps to save a lot of money.