________ with his work in the Satellite Launch Site，he could not spare any time to stay with his parents though they are very old.
| A．As occupying | B．Occupied | C．Having occupied | D．To occupy |
The officers narrowly escaped_____ in the hot battle.
| A．have killed | B．to kill | C．to be killed | D．being killed |
One of the judges __________ to Gana’s film festival was a famous artist from China, Zhang Ziyi.
| A．invited | B．to invite | C．had been invited | D．being invited |
Don’t turn the room __________, as I have just tidied it.
| A．upside down | B．inside | C．outside | D．inside down |
Students are encouraged to _________ the design competition for robots at the university.
| A．take part | B．operate | C．join to | D．participate in |
Having fish at meals regularly can be of great _________ to your heart.
| A．benefit | B．help | C．contribution | D．use |