请将下列单词中不同类别词挑出来，把该词的序号写在前面的括号里。
（1）( ) A. lion B.tiger C.animal D.elephant
（2）( ) A.five B.clock C.seventeen D.twenty
（3）( ) A.cake B.camera C.sweets D.bread
Who's he? ________
A. She is Bai Ling. B. He's Zhang Peng. C. It's a book.
Go to the _________. Have a snack.
A. living room B. bathroom C. kitchen
The ball is _____ the chair. 
A. inB. under C. in
How many English books do you have? _________
A. I have 9.B. I can see 10.C. Yes, I do.
Are they in the door? _______
A. No, they aren't. B. No, it isn't.C. Yes, they aren’t.