A) They were extremely innovative. B) They cost little to make. C) They helped keep teeth clean. D) They weren't very hygienic.
A) a special toothbrush B) the stem of a toothbrush C) an animal hair used to make a brush D) a part of a hog
A) true B) false
A) because they tasted better when chewed B) because people chewed on them to help clean the teeth C) because they were chewed on by animals 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 originally used animal hairs. D) It was vry popular when it was invented.
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 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 reason why mosquitoes bite people C) the way the patch has been tested with the public D) The ingredients in standard bug repellants
A) Carbon Dioxide: Perfume of the Mosquito B) Avoid Chemicals in Common Repellants C) Mosquitoes are Pesky D) A Safe Solution to Pesky Mosquitoes
A) true B) false |