完形填空。 We see many animals, like rabbits, bees, dogs, birds, sheep but do you know 1 these animals say things? First, let's see a rabbit. When a rabbit sees something 2 , it runs away at once. When it runs,  its tail moves up and 3 . When others see this, they run 4 . Many other animals use this kind of 5 . When a bee finds some food, it goes back to its home. It cannot tell 6 bees where the food is by speaking 7 them, but it does a little dance in the air. This may tell other bees 8 the food is. Some animals say things by making sounds (声音) like a man 9 . A dog barks when a stranger (陌生人) comes near. Some birds can make several (几种) 10 sounds, each with its own meaning. In a word, every animal has its own language. (     )1. A. why (     )2. A. bad (     )3. A. up (     )4. A. away (     )5. A. away (     )6. A. many (     )7. A. with (     )8. A. where (     )9. A. do (     )10. A. useful B. when B. dangerous B. off B. fast B. moving B. small B. to B. what B. did B. hard C. how C. exciting C. on C. too C. language C. all the C. about C. whose C. does C. exciting D. where D. interesting D. down D. back D. running D. the other D. in D. how D. doing D. different