A) They were extremely innovative. B) They helped keep teeth clean. C) They weren't very hygienic. D) They cost little to make.
A) the stem of a toothbrush B) an animal hair used to make a brush C) a special toothbrush D) a part of a hog
A) false B) true
A) because people chewed them after using them B) because they tasted better when chewed C) because they were chewed on by animals D) because people chewed on them to help clean the teeth
A) It was vry popular when it was invented. B) It originally used animal hairs. C) It was cheaper than previous toothbrushes. D) It worked better than any toothbrush before it.
A) Manufacture it in factories. B) Test it on mosquitoes. C) Sew it into specific brands of clothing. D) Give it away to a variety of stores.
A) To show readers why mosquitoes are annoying. B) To highlight the need for an improved product. C) To emphasize the importance of repellants. D) To indicate most people probably knew this fact already.
A) The ingredients in standard bug repellants B) the way the patch has been tested with the public C) the type of chemical used in the patch D) the reason why mosquitoes bite people
A) Avoid Chemicals in Common Repellants B) A Safe Solution to Pesky Mosquitoes C) Mosquitoes are Pesky D) Carbon Dioxide: Perfume of the Mosquito
A) false B) true |