Use the Present Simple, Active or Passive, instead of the infinitives in brackets

1. A number of important by-products (to obtain) from meats.

2. Government officials (to inspect) and (to grade) carcasses after slaughtering.

3. The term "meat" (to use) to describe the flesh and other edible parts of animals.

4. Beef (to refer) to the meat from cattle, veal (to refer) to the meat taken from calves.

5. Saturated fatty acids (not/to undergo) oxidation in the air.

6. Vacuum packaging greatly (to minimize) the spoilage of meats.

7. Beef (not/to consume) in most Asian and African countries.

8. Cooked meat (not/to contain) as much water as raw meat.

Use the Past Simple, Active or Passive, instead of the infinitives in brackets.

1. The recipe of making hamburgers (to bring) by German sailors to the USA.

2. The hot weather (to promote) rapid rancidity in meat.

3. One hundred years ago people (to know) how to preserve food using fermentation, but they (not/to know) anything about irradiation method.

4. Such parts as livers, kidneys, and other offal (to use) by cuisines of different countries many years ago.

5. The dish prepared from small thin slices of veal (to appear) in France and (to call) escalopes.

6. Meat smoking (to know) even in ancient times.

7. Centuries ago Judaism and Islam (to issue) special laws which (not/ to allow) the population to eat pork.