1 he comes from canada?(疑问句,肯定回答) 2 改为否定句 he has a knife

问题描述:

1 he comes from canada?(疑问句,肯定回答) 2 改为否定句 he has a knife

1.Does he come from Canada ? Yes , he does.
2.He doesn't have a knife.

yes,he does.
He doesn't have a knife.