_____________ the sun for too much time will do great harm to your skin.
| A．Exposed to | B．Being exposed to |
| C．Exposing to | D．To expose to |
—Would you like tothe discussion this Saturday?
—Sorry, I have an important meeting to.
| A．attend; join | B．join; attend |
| C．join; take part in | D．join in; attend |
This is the first time that Iface to face with the president.
| A．had come | B．have come | C．came | D．come |
Silk from China found its way to India, the Middle East and Rome,spices(香料) and glass, which was not known to China.
| A．in exchange for | B．in return | C．in change for | D．in need of |
How time flies! It has been ten years I moved to Chongqing.
| A．when | B．that | C．before | D．since |
.It remainswhether Jim will be healthy enough to play in the finals.
| A．seen | B．to be seen | C．seeing | D．to see |