用this，that，these，those填空
【小题1】—Who is __________？
—__________ is Mike speaking.
【小题2】__________ are my books. They are cheap. They are over there. __________ are yours. They are thinner. They are here.
【小题3】—Who is __________？—That is Miss Liu.
【小题4】—Who's that speaking？—__________ is Mr Liu.
【小题5】Dad，__________ is Tom. Tom，__________ is my dad
【小题6】—Is __________ Kate speaking？
—Yes，__________ is Kate speaking.
【小题7】—Look at __________ pictures，Lucy. They are pretty.
—Where？I can't see them
—They are over there.