问题
选择题
-Can Professor Li be in the laboratory?
-He ________ be; I saw him there half an hour ago.[ ]
A．can
B．must
C．might
D．need
答案
答案：C
搜题请搜索小程序“爱下问搜题”
-Can Professor Li be in the laboratory?
-He ________ be; I saw him there half an hour ago.[ ]
A．can
B．must
C．might
D．need
答案：C