this tree is 50 years old that tree is 90 years =this tree__

this tree is 50 years old that tree is 90 years =this tree__ this tree is ten years old.that tree is ten years old,too.改为 2.this tree is ten years old.that tree is ten years old,too. this tree is tall but that tree is much___(tall) The tree that is four hundred years old is very famous here. It is not until the tree is 20 to 25 years old that it becom There is a tree which is 1500 years old.= There is a _______ This tree is ( ) taller than that one ( ) old man under ( ) tree is over 90 years old.A.An,the B.T This is an 8-year-old boy.That girl is 7 years old . this is an old man .he is 80 years old there is （）apple tree in my garden ,it is over 10 years old,