问题
选择题
—Is Lucy knocking at the door?
—No. It ______ be Lucy. She is in Japan now. [ ]
A. needn't
B. mustn't
C. can't
D. shouldn't
答案
答案：C
搜题请搜索小程序“爱下问搜题”
—Is Lucy knocking at the door?
—No. It ______ be Lucy. She is in Japan now. [ ]
A. needn't
B. mustn't
C. can't
D. shouldn't
答案：C