1.     Some of my friends sometimes skip breakfast _____ they get up late in the morning.  although      in spite of                 because of                because 2.     The people _____ were injured in the accident were taken to hospital.  which                        who                whose                        whom 3.     If we _____ to pollute the water, we will have no fresh water to use. Continuing               continued                continue       to continue 4.     The old man persisted _____ believing that his son was still somewhere in the city. On                  in                    for                 with 5.     You will have to _____ your holiday if you feel too tired. put down                  put out                     put off                      put up 6.     I wish my father _____ up smoking. It is too bad for his health. Gives              gave              give               will give 7.     Many animals _____ for their fur or other valuable parts of their bodies.  are killed                  being killed             killed                          are killing 8.     It is not easy to _____ our beauty when we get older and older. Develop                    maintain                  gain              collect 9.     The judge found him _____ of stealing and sent him to prison. evil                  innocent                   guilty                         guiltless 10.A book may be studied by students as the _____ of a writing and analysis exercise in the form of a book report. Limit               time              subject                      interest 11.We live on a _____ called _____. moon - Earth        planet - the United States      star - the Sun       planet - Earth 12.A reptile is _____. a kind of animal that has smooth, wet skin and lives in the water  as a baby a kind of animal that has dry, scaly skin and lays eggs on land a kind of animal that has gills, scales, and lives in the water  a kind of animal that has feathers, wings, and lays eggs 13.What is freezing? turning a gas into a liquid            turning a liquid into a gas  turning a liquid into a solid         turning a solid into a liquid