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) a part of a hog D) an animal hair used to make a brush
A) false B) true
A) because they tasted better when chewed B) because they were chewed on by animals C) because people chewed them after using them D) because people chewed on them to help clean the teeth
A) It originally used animal hairs. B) It worked better than any toothbrush before it. C) It was cheaper than previous toothbrushes. D) It was vry popular when it was invented.
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 highlight the need for an improved product. B) To indicate most people probably knew this fact already. C) To emphasize the importance of repellants. D) To show readers why mosquitoes are annoying.
A) the way the patch has been tested with the public B) the type of chemical used in the patch C) The ingredients in standard bug repellants D) the reason why mosquitoes bite people
A) Mosquitoes are Pesky B) Carbon Dioxide: Perfume of the Mosquito C) Avoid Chemicals in Common Repellants D) A Safe Solution to Pesky Mosquitoes
A) false B) true |