找出一个划线部分与其他两个不同的单词，把其代号填入题前括号内。
（1）A.hamburger B.Saturday C.purple
（2）A.bear B.hear C.ear
（3）A.beef B.clean C.great
（4）A.play B.day C.Monday
（5）A.now B.cow C.snowy
( ) Is the cat ________ the doorNo, it isn’t. It’s ________ the desk.
| A．behind, under | B．in, on | C．under, at | D．over, behind |
( ) If I ____ you tomorrow, I will give you the receipt.
A. seeB. will seeC. am seeing
( )—— What day is today —— It's ______.
A. MondayB. a fine dayC. September 1st
( ) The students couldn't help ______ when they heard the joke.
A. to laughB. laughC. laughing
( ) Do you know ______ this word?
A. what to spellB. how to spellC. to spell