He is quick to ____ himself to new environment.
| A．adopt | B．adore | C．adapt | D．adept |
We will do everything we can _____ out city and people.
| A．to save | B．save | C．save to | D．saving |
Mr．Smith told us that gold medal his son had got was considered honor to the whole family．
| A．the：/ | B．the；an | C．a；an | D．a；the |
The thought of going back home was _______kept him happy while he was working abroad.
| A．that | B．all that | C．all what | D．which |
It is reported that the US uses ________energy as the whole of Europe.
| A．twice as much | B．twice as | C．twice more | D．as twice |
Why don’t you put the meat in the fridge? It will ______fresh for several days.
| A．be stayed | B．stay | C．be staying | D．have |