In a room above the store, where a party _____, some workers were busily setting the table.
| A．has been held | B．was to be held |
| C．will be held | D．is being held |
The name of our country is PRC, which _____ the People’s Republic of China.
| A．stands by | B．stands for | C．stands up | D．stand out |
He came back late, _____ which time all the guesses had already left.
| A．by | B．at | C．during | D．after |
Because so many visitors are visiting our school today, some teachers have to _______ guides.
| A．serve as | B．regard as | C．treat as | D．use as |
She thinks only of herself; she doesn’t _____ other people.
| A．care for | B．care about | C．care of | D．care in |
—Peter didn’t come to the meeting this morning.
— I _______ him yesterday, but I was too busy and forgot it.
| A．should have told | B．should tell | C．had to tell | D．had told |