It ________ some time _________ I realized the truth.
| A．was; before | B．is; before |
| C．has been; until | D．has been; after |
When the students heard the alarm, they all hurried to they thought was an emergency exit door．
| A．what | B．which | C．where | D．who |
— Have you told Mary the good news that she was admitted into Shandong University?
— Yes. I told her ________I saw her this morning.
| A．while | B．the moment | C．until | D．suddenly |
—Your colleague's spoken English is quite good, Amy．
— No wonder, as she in the USA for two years．
| A．worked | B．has been working | C．had worked | D．has worked |
— We expected you yesterday．
— I'm sorry, I you to say that I couldn't be here until today．
| A．must have called | B．would be calling |
| C．could have been calling | D．should have called |
— Why did you give up the job in America?
— Because I don’t want to stay far away from my girlfriend. You know, she means ______ to me.
| A．everything | B．nothing | C．anything | D．something |