the pair of pants are very nice

问题描述:

the pair of pants are very nice
如题
找错
the teengers can wash clothes by themselves
the teengers ()()() wash clothes by themselves
同义句转换

are 改成 is
遇到A of B 的时候,单复数以A为准.这里是pair单数,所以用is
are able to
be able to = can