--what's this?--_____is a pen.为什么要填these?为什么不能填it?
--what's this?--_____is a pen.为什么要填these?为什么不能填it?
what's this in English?It's a pen.为什么不能说是"this is a pen."?详细
what's this?It's a pen.为什么不能说是"this is a pen.我们老师说就是不能说this
what is this ?It is a pen而不是It is pen.但为什么what's this? It's
What's this It's pen .为什么答句不用this is pen,到底it,that ,this 的用法
What is this 是This is a pen.还是.It is a pen?为什么?
what( ) lovely weather it is 为什么不能填the
填a还是an What's this?It's_______apple.
( ) is important to learn English well.为什么这个填It而不能填This That
What's this?It's a pen.(改为复数句)
英语问题What's this It's a pen ______
what's this?(填单词)a ruler.