根据短文回答问题
ThereisabigtreebehindLiLei'shouse.Thereisasmallhouseinthebigtree.It'satreehouse.LiLeiandhisfriendsliketoplayinthetreehouse.What'sinthetreehouse?Thereisabedandasmalltable.Onthetablethereisaclock,anappleandsomeflowers.Thereisabookandapencilonthebed.Therearesomebirdsnearthetreehouse.LilyandLucyareunderthetree.ButTomandBillareinthetree.Theyareveryhappy.
1/Whereisthebigtree?
2/Wherearethebedandthesmalltable?
3/Whoareinthetree?
4/Whoareunderthetree?
5/IsthetreehouseLiLei'shome?