Doctors have said that as many as 50% of the patients don’t take medicine as .
| A．being directed | B．to be directed | C．directed | D．directing |
____ the temperature falling so rapidly, we couldn't go on with the experience.
| A．Since | B．With | C．As | D．For |
--- Do you know Uncle Tom is crazy about gardening?
---Sure. He ____ his flowers in the garden now.
| A．may be watering | B．must be watering | C．could look after | D．ought to watch |
He is neither______ European, nor______ American. He is from______ Australia.
| A．a; a; / | B．a; an; the | C．a; an; / | D．an; an; / |
This photo of mine was taken ______ stood the famous Eastern Bright Pearl in Shanghai.
| A．which | B．in which | C．where | D．there |
Is there a bookshop around ______ I can buy an English and Chinese dictionary?
| A．which | B．where | C．that | D．what |