—This pair of shoes ____ belong to Jack. He likes this kind very much.—It ____ be his. It’s too large for him.
My aunt has a son.He is my ________.
一Where is my hat? —I can’t _______ it.
一Is this your bike?—No.It is ______, _______ is red.
They don’t have _______ color pencils,but I have _______.
Can you see a set of keys here?