问题
选择题
—There is someone in the classroom.
—It ________ be Lucy. She always gets to school early.[ ]
A. can
B. may
C. must
D. mustn't
答案
答案：C
搜题请搜索小程序“爱下问搜题”
—There is someone in the classroom.
—It ________ be Lucy. She always gets to school early.[ ]
A. can
B. may
C. must
D. mustn't
答案：C