You must take the medicine three times ___ day.
| A．the | B．one | C．every | D．a |
_________in the city for thirty years, the old man moved back to the countryside.
| A．Having worked | B．Working | C．To have worked | D．To work |
So serious ________ that even the best doctors failed to save his life.
| A．the man was injured | B．was the man injured |
| C．the man is injured | D．is the man injured |
．Those are model teachers, most of_________ are young women.
| A．that | B．who | C．whom | D．whose |
．— May I help you?
— Yes, I'd like to try on some sports jackets just like_________ I'm wearing.
| A．it | B．this | C．the one | D．that |
—__________ I hand in my report as soon as the class is over?
—No, you needn’t. Anytime this week is okay.
| A．May | B．Must | C．Shall | D．Can |