_____the doctors in the hospital is about100 and one fourth of them are _______doctors.
| A．A number of; man | B．The number of; men |
| C．A number of; men | D．The number of; man |
It’s ten years since he _________ his hometown.
| A．left | B．leaves | C．has left | D．is leaving |
The students shouted with ________ when they heard the ________news.
| A．excited; exciting | B．excitement; excited |
| C．excitement; exciting | D．exciting; exciting |
Fred’s grandfather _______three years ago. He _______for three years.
| A．died; died | B．was dead; died |
| C．died; has been dead | D．died; has died |
—Excuse me, does Mr. Chen live here?
—He ______ be here, but he has moved to Nanjing.
| A．used to | B．happened to | C．tried to | D．had to |
The roller coaster there moved _______ high speed.
| A．in | B．on | C．with | D．at |