The only thing __________ we should do now is try our best to prepare for the Academic proficiency test.
| A．what | B．that | C．all | D．which |
— 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 |
Clean water and fresh air are essential for our daily life, _______ we can’t live.
| A．by which | B．without which | C．that | D．on which |