完形填空 Jim,my son,is 4years old.he to play with electric toys when he is alone at home .

问题描述:

完形填空 Jim,my son,is 4years old.he to play with electric toys when he is alone at home .

Jim,my son,is 4years old.he usually to play with electric toys when he is alone at home .
是不是改成这样啊
这样就通顺了