I can’t find the recorder in the room. It ________ by someone.
A. may take B. may have been taken away
C. must have taken away D. needn’t have been taken away
The reason ______ he failed was _______ he was too careless
A. because; because B. why; because C. that; that D. why; that
When the thief found the police had already ______ him, he ran away quickly.
A. realized B. known C. spotted D. stared
---I’m sorry. I _________at you the other day.
---Forget it. I was a bit out of control myself.
A. shouldn’t have shouted B. shouldn’t shout
C. mustn’t shout D. mustn’t have shouted
Sir, you are not allowed to enter the building unless you get our manager’s__.
A. permission B. connection C. instruction D. introduction
I work in a business _________ almost everyone is waiting for a great chance.
A. how B. which C. where D. that
