【2020最新整理国开(电大)人文英语1-3896网上形考机考题库】This is not like him. Something_______ be wrong.

【2020最新整理国开(电大)人文英语1-3896网上形考机考题库】This is not like him. Something_______ be wrong.
选择一项：
A. must
B. can
C. may