is/am this that ciass bus的复数形式
问题描述:
is/am this that ciass bus的复数形式
答
is/am---are , this-- these, that--those, class--classes, bus--buses
答
is/am - are
this- these
that - those
ciass - classes
bus- buses
答
are these those classes buses
答
不喜欢分离