19. It’s quite an informal gathering ; you needn’t ______for it .
| A．dress down | B．dress up | C．dress | D．dress on |
It’s really dangerous. One more step, ______ the baby will fall into the pool.
| A．or | B．and | C．so | D．but |
Can you believe that in ______ a rich country there should be _______many people.
| A．such, such | B．such, so | C．so, so | D．so, such |
People never ask for ______second bowl of soup at a dinner party in western countries.
| A．the | B．a | C．another | D．the other |
_____ is mentioned above, the number of the students in the senior schools is increasing.
A which B As C That D It
How are you going to _______ such problems?
| A．do with | B．deal with | C．deal | D．do up |