问题
选择题
— Do you hear the noise outside?
— Yes. There must be some kids _____ outside. [ ]
A. have fun
B. has fun
C. to have fun
D. having fun
答案
答案：D
搜题请搜索小程序“爱下问搜题”
— Do you hear the noise outside?
— Yes. There must be some kids _____ outside. [ ]
A. have fun
B. has fun
C. to have fun
D. having fun
答案：D