As is known to all, oranges are _______ Vitamin C.
A. rich in B. poor with C. short of D. good for
We have been caught __________ the rain and are really wet __________ the skin.
| A．in; to | B．by; on |
| C．in; through | D．with; over |
Tony was caught __________ at the meeting, which annoyed his boss.
| A．chatting | B．chat |
| C．chatted | D．to chat |
I hate going out alone, so I often ask my friend to __________ me.
| A．defend | B．protect |
| C．accompany | D．guard |
In spite of all the efforts __________ these endangered species, many of them have died out over the years.
| A．to protect | B．protecting |
| C．protected | D．having protected |
After the explosion, the roads are full of __________ people leaving the city.
| A．afraid | B．frightened |
| C．frightening | D．scary |