Vocabulary

• used to: Did regularly before, but don't do now
• quiz question: A question asked in a quiz to test someone's knowledge.
• talking about: To discuss a particular topic.
• in essence: Used to summarize the main point.
• build up: To increase the amount; collect something
• in the future: At a later time; in times to come.
• certain foods: Specific types of food, often referring to those with particular characteristics or effects.
• for example: As an illustration or instance.
• answer to: To be responsible to someone and have to explain your actions to them.
• such as: For example; like
• treat: To pay for the food or enjoyment of someone else
• immune: Having a special protection from, e.g. the law
• substance: Essence of; most basic or central qualities
• English: Language of the UK, USA, Nigeria and elsewhere
• switch: A change or shift from one method to another
• system: Set of organized, planned ideas that work together
• severe: Very bad; harsh
• minute: Notes taken at a meeting to record what was said
• expose: To make visible, without covering or protection
• bacteria: The very small creatures that can cause disease
• food: What people and animals eat to live
• free: Living, happening without being controlled
• allergic: Of or having a reaction to an allergy
• month: One of 12 28-31 day periods in the year
• allergy: Sensitivity to foods, etc. causing a bad reaction