There has been a _______ increase in the temperature on the earth for about 100 years, but few people notice it.
| A．loose | B．gradual | C．spare | D．fluent |
The children put on ___ one-act play last Saturday.___ play amused everyone of us.
| A．an…..An | B．a….An | C．an…The | D．a….The |
The foreigner is learning ___ Chinese and he is sure that ___ Chinese language is very difficult.
| A．/…./ | B．…the | C．the…./ | D．the….the |
It was ___ cool autumn night. ___ bright moon hung high in ___ sky.
| A．the…The… the | B．a ….The…a | C．a…The..the | D．a…A…the |
When our teacher comes into the room, we greet him with ___ “Good morning.”
| A．a | B．the | C．an | D．one |
The students do their homework ____.
| A．the most of the night | B．in most of the night |
| C．most of the night | D．in the most of the night |