III. Fill in the gaps with a preposition: at, on (2), with, for, at,

1. I don’t think people should be allowed to perform experiments __on___ animals.

2. My father works at the university, doing research __on___ weather control.

3. Our physics teacher made an attempt _at__ explaining the Theory of Relativity.

4. For, whereas women make up over half the members of society ___at__large, in higher education they are very definitely in a minority.

5. The government is trying to convince people of the need __for___ higher taxes.

6. The study is not explicitly concerned __with___ providing answers but with putting the relevant questions, along with the arguments pro and con for each.

7. The law is called upon to distinguish __between___ information which may be legitimately used to make a stock market trade, and that which may not.