Apart from the urgent problems caused by wars and conflicts， the UN helps countries with other problems such as education， starvation， disasters， AIDs and other diseases.
| A．lack for | B．lack in |
| C．lack | D．lack of |
-When did the Asian Games ______？
-I remember that people held the first Asian Games in 1951.
| A．come into power |
| B．come into being |
| C．come true |
| D．come out |
The river ______ badly now. We must do something to stop the waste water from being poured into it.
| A．is polluting |
| B．pollutes |
| C．is being polluted |
| D．has polluted |
In my opinion, ______ wild animals should be allowed to live in ______ wild.
| A．/; / |
| B．the; the |
| C．/; the |
| D．the; / |
The days are gone _______ physical strength was all you needed to make a living. (2011 .天津)
| A．when |
| B．that |
| C．where |
| D．which |
The school shop, _______ customers are mainly students, is closed for the holidays. (2011 .四川)
| A．which |
| B．whose |
| C．when |
| D．where |