Because that's what I do.I talk.What are you doing?

especially because that's what the underlying model indicates because that's true that's because Because that's what I do.I talk.What are you doing? What's that是什么意思 What's that?中文 what 's that mean? What's that? What's that again? what's that down What's this,and what's that. That's why... 和That's because...的区别 that's because和that's why 有什么区别? Was it___Tom's carelessness____your keys were all lost?A.because;which B.for;what C.because of; that D.since;why it's because后面能否加that That 's all,because of you what's the fucking that? What's that over there?----------------------？