There are many kinds of ants in the world that always live in companies. They are the most hardworking creatures and most of them make their nests under ground. The small black ants that we see running back and forth in the grass are the same ants that bother us by coming to our picnics uninvited. They are not trying to be harmful, but are only doing the house-keeping job they were made for. They are nature's clean-up crew. One of these ants, scouting in the grass, finds the trail of an injured beetle. In some mysterious way the news spreads. Soon there are two ants, then a few more. Then a dozen or more are running around the beetle. Enough ants will come to put an end to it. Then the beetle is dead, the ants carry it away to their underground nests. They leave nothing in the grass but empty shell. 1. The ants that come to our picnics are___________ . A. looking for company B. having fun C. doing their job D. trying to bother us 2. According to this passage the black ants' job is to___________ . A. kill all beetles B. clean up the grass C. look for food D. enjoy our picnics 3. As soon as an ant finds an injured insect, it___________ . A. makes friends with it B. kills it C. carries it away and eats it D. lets other ants know 4. More ants learn about the beetle___________. A. by smelling it B. by hearing the sounds it makes C.from other ants D. from the injured beetle 5. The ants clean the grass by___________ . A. carrying away everything but the shell B. carrying away the whole beetle C. putting the whole beetle under the ground D.covering the beetle with leaves