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