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