Pushing a wheelchair is not really as easy as it looks. Before  41  out, you have to make sure that the rider is situated well in the seat of the wheelchair, so that the balance is kept steady during the ride. Also, her legs have to be firmly placed on the footrests so that her feet will not  42  on the ground. Then, before going forward, the brakes on the wheels have to be released. While en route, there are also many things to watch out for. You should never go too fast  43  bumps appear in your path. Maybe a teenager will suddenly stop in front of you to tie his tennis  44  laces or a young toddler will wander into your pathway, and you will have to come to a  45  stop. If you are careful enough, you and the rider will arrive at your destination without any mishaps.

Like identical twins, Maureen and Jessica have many similarities 36 . Their faces and builds are the same, and they wear their short, dark hair in styles similar to each other. But physicality is where the similarities 37 . In terms of their academic interests and abilities, Maureen and Jessica are very different from one another. While Maureen likes math and science classes, Jessica excels at literature and arts classes. Instead of watching TV or wasting her spare time, Maureen likes to conduct scientific experiments or work on complicated math problems. Like her sister, Jessica also 38 busy during her spare time; 39 , she would much rather read novels, write poetry, or paint. Instead of presenting the twins with problems and conflicts, their differences seem to have brought them closer together. Many people wonder if the twins are always in 40 about their interests and ideas; on the contrary, they enjoy learning about each others' interests. Maureen and Jessica's relationship suggests that people's differences can bring them closer together instead of separating them.

       A vegetarian is a person who does not eat meat, poultry, and fish. Vegetarians eat__46__ fruit, vegetables,grains, seeds, and nuts. Many vegetarians eat eggs and/or dairy products but avoid hidden animal products __47__beef and chicken stocks, lard, and gelatin.

      People are vegetarians for many reasons, including __48__for personal health and the environment or spiritualreasons. People may become vegetarians for one reason, and then later on__  49__ some of the other reasons as well.According to the American Diabetes Association, vegetarians are at a lower risk for developing heart disease, diabetes,high blood pressure and breast cancers. This is__50__ a healthy vegetarian diet is typically low in fat and high in fiber.Though being a vegetarian can be a healthy lifestyle, be sure you fully understand why you are choosing vegetarianism.