The author considers it impossible to obtain no-risk food because （） A: many vegetables contain deadly natural chemicals B: almost all foods have additives C: no food is free from pollution in the environment D: pesticides are widely used in agriculture

The author considers it impossible to obtain no-risk food because ______. A: no food is free from pollution in the environment B: pesticides are widely used in agriculture C: many vegetables contain dangerous natural chemicals D: almost all foods have additives

Compare the following sentences and their paraphrases, then choose the ways of paraphrasing. People are increasingly interested in natural foods which do not contain chemical additives.[br][/br] →Interest has grown in natural foods: foods which do not contain chemical additives. A: By using different order; B: By using different parts of speech; C: By using the negative or positive structure; D: By using the passive voice or active voice; E: By using synonyms; F: By using impersonal structure.

Processed foods contain __________, artificial flavors and other chemical ingredients.

What kinds of foods are considered natural foods？ A: vegetables ,fruit ,and grain grown in soil rich in vitamins and minerals B: vegetables ,fruit ,and grain C: animals D: animals allowed to feed and move freely outdoors.