44. He ______ all his time and energy to his work．
| A．spent | B．cost | C．contributed | D．combined |
Great men never give up ___ difficulty.
| A．in a face of | B．in face of the | C．in the face of | D．in the face of the |
It is ___ great pleasure for me to be praised in public.
| A．/ | B．a | C．an | D．the |
The children put on ___ one-act play last Saturday. ___ play amused everyone of us.
| A．the… the | B．/…the | C．the…/ | D．/…/ |
When our teacher comes into the room. We greet him with __ “Good morning.”
| A．a | B．the | C．an | D．one |
Suddenly ___ fire broke out in his house and the neighbours immediately, tried to put out ___ fire.
| A．a… the | B．the…a | C．the…the | D．a…a |