选出与其他三个不同类的单词，将其序号写在题前括号内。
( )⑴A.autumn B.winter C.cloudy D.summer
( )⑵A.history B.post office C.library D.bookshop
( )⑶A.bright B.blue C.white D.black
( )⑷A.went B.had C. got D.sit
( )⑸A.him B.us C. they D.her
( ) Mrs. Sun is a friend of _______.
A. Mary's mother B. mother of Mary C. Mary 's mother's
( )—— I'm sorry I can't help you. —— ________.
A. Not at all. B. You are welcome. C. It doesn't matter.
( ) I want to buy ________.
A. something eat B. something to eat C. anything to eat
( )—— I don't like milk. —— I don't, _________.
A. too B. neither C. either
( ) ——_____ will you do——I’ll play football.
A. What B. When C. Where