This is the tree.为什么要用the

This is the tree.为什么要用the This is a tree .The tree is tall (合并成一句) This isThis is a tree .The tree is tall (合并成一句) This is _____ ____ _____ this is the thrid( ) tree in the park.this is the thrid( ) tree in the park. ( big ) this tree who is the first to cross? This tree is 15 metres high同义句 The—— ——this tree is 15 metres. 3.Is this （ ）apple tree?No,（ ）tree is（ ）orange tree.A.an,a,theB.a,the,anC.an,the,anD.the,the,an The cat is _____(in the tree/on the tree)快 要说明为什么 This bird is in the tree.That bird is in the tree,too.(合成一句)_____the birds _____ in the tree. this tree is tall but that tree is much___(tall) 这棵树是那棵树的三倍高.This tree is three times the height of that one.this tree is three times the size of that one. this man is a teacher.和that child is under the tree.的复数形式 how high is she The ___ __ this tree is 15 metre. The apple is the tree the cat.is.the tree This is the tree ,_____ yesterday because of the wind .这里可以用fallen This is a green tree (a green tree)怎么提问 the man under the tree is Mr Li对under the tree提问,为什么用which,不用who,where 英语翻译the tree is bald 还是 the tree is bare