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