问题
选择题
Peter _____ be really difficult at times even though he's a nice person in general. [ ]
A. shall
B. should
C. can
D. must
答案
答案：C
搜题请搜索小程序“爱下问搜题”
Peter _____ be really difficult at times even though he's a nice person in general. [ ]
A. shall
B. should
C. can
D. must
答案：C