This pair of shoes___and I'll have___ A.is worn out ;it mended.B.is worn out;them mended.我搞不清楚究竟要选it还是them.请附上理由!为什么前面指代a pair of而后面指代shoes?为什么没有统一

问题描述:

This pair of shoes___and I'll have___ A.is worn out ;it mended.B.is worn out;them mended.
我搞不清楚究竟要选it还是them.请附上理由!
为什么前面指代a pair of而后面指代shoes?为什么没有统一