问题
选择题
— Is that a pencil-box?
— No, __________.[ ]
A. it is
B. it isn't
C. is
D. It's
答案
答案：B
搜题请搜索小程序“爱下问搜题”
— Is that a pencil-box?
— No, __________.[ ]
A. it is
B. it isn't
C. is
D. It's
答案：B