问题
选择题
________Sunday, the students are at home.[ ]
A. Being
B. To be
C. It is
D. It being
答案
答案：D
搜题请搜索小程序“爱下问搜题”
________Sunday, the students are at home.[ ]
A. Being
B. To be
C. It is
D. It being
答案：D
