The litter boy can swim (swim swims )in the river为什么,后面选swim
问题描述:
The litter boy can swim (swim swims )in the river
为什么,后面选swim
答
can后面的单词不用加s
The litter boy can swim (swim swims )in the river
为什么,后面选swim
can后面的单词不用加s