It is not rare in ____ that people in ____fifties are going to university for further education.
| A．90s, the | B．the 90s, / |
| C．90s, their | D．the 90s, their |
If you want to make _____ life for yourself, you have to be prepared to face _____ great many unexpected difficulties.
| A．/ ; a | B．/ ; the | C．a ; the | D．a ; a |
There is a general but false assumption _____ intelligent people do better in life.
| A．as | B．what | C．that | D．which |
Some house plants grow better if placed near a window with plenty of sunlight ______ others prefer to be in a more shaded spot.
| A．unless | B．since | C．when | D．while |
The doctors are doing all that they _____, but the old man is still not breathing properly.
| A．shall | B．need | C．may | D．can |
Many fans are always collecting a lot of information _____ with their favorite stars.
| A．being associated | B．associating | C．associated | D．to associate |