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'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's this in English?It's a pen.为什么不能说是"this is a pen."?详细
--what's this?--_____is a pen.为什么要填these?为什么不能填it?
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?——___.(①It's a pen.②This is pen.③This is an pen.
新概念英语 不能说my this a pen?要说 my pen?为什么?
What’s this?This is a pen.哪里错了?
what's_?__a pen ?a 、this;this is b 、this;it's c 、 that;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 color is this pen的回答可不可以是It's a red pen
What is this 是This is a pen.还是.It is a pen?为什么?