China, a country with 145 million elderly people, will remain _______ ageing society during this century, according to _______ Chinese population experts.
| A．/; the | B．an; / | C．an; the | D．the; / |
--- How long will you be staying? .
--- I don’t know. .
| A．That’s OK |
| B．Never mind |
| C．It depends |
| D．It doesn’t matter |
---Do you have New Concept English Ⅵ in your shop?
---Yes, but no more than one copy. Would you like to take ______?
A．it
B them
C．some
D．one
In the west, people make _______ a rule to send Christmas present to their relatives and friends.
| A．this |
| B．that |
| C．it |
| D．the following |
Why don’t you bring ______ to his attention that you are too busy to do it?
| A．this |
| B．what |
| C．that |
| D．it |
They live on a busy main road. ______ must be very noisy.
| A．There |
| B．It |
| C．That |
| D．They |