A:第一象限
B:第二象限
C:第三象限
D:第四象限
给下面的句子选择合适的答语。
①Happy birthday! ____ A. Two books.
②How old are you? ____ B. Thank you.
③How many books? ____ C. You're welcome.
④Let's eat the cake. ____ D. I'm 10.
⑤Thank you. ____ E. Great.
I'm monkey. I'm number thirteen.