将下面的句子改为一般疑问句并作肯定或否定回答1.Thisisyourpen.一般疑问句:肯定回答:2.Thatisapencilbox.一般疑问句:否定回答:

Question

将下面的句子改为一般疑问句并作肯定或否定回答

1.This is your pen.

一般疑问句: 

肯定回答: 

2.That is a pencil box.

一般疑问句: 

否定回答: 

Answer 1

1.Is this your pen?/Yes it is. 2.Is that a pencil box?/No it isn’t.