一、单项选择（每小题1分，计15分）
（ ）1. I ______ Bob. What ______ this in English?
A.am;am B.is;is C.am;is
（ ）2. I have ______ key. ______ key is yellow.
A.a;The B.an;The C.the;An
（ ）3.下列那组字母的小写都占下两格？
A.GPY B.AUZ C.FQV
（ ）4.--- What color is the key?
---- ______.
A.It's a key B.It's a yellow key. C.It's yellow.
