问题
选择题
— What are they doing?
— They're __________ fun.[ ]
A. has
B. having
C. have
答案
答案：B
搜题请搜索小程序“爱下问搜题”
— What are they doing?
— They're __________ fun.[ ]
A. has
B. having
C. have
答案：B