问题
选择题
—Is Bob still performing?
—Im afraid not.He is said _______ the stage already as he has become an official.
A.to have left
B.to leave
C.to have been left
D.to be left
答案
A
此题考查学生对动词不定式的时态和语态的掌握和运用能力。首先leave作“离开” 讲时是不及物动词,没有被动形式;其次,句中的already 表示完成概念。因此选择表示主动兼完成的to have left。