下面的完形填空的答案People can find bears in many places in the world.

下面的完形填空的答案
People can find bears in many places in the world.They have large bodies and thick legs,but 21 tails.Bears are not real meat-eaters because they almost eat 22 .Bears are not so dangerous 23 people think them to be.Bears are very brave.Many 24 were killed by bears when they wanted to kill bears.Bears have very good smell but very poor 25 .So they usually find something with their noses,not with their eyes.They live mainly on root（根）,fish and small insects.Sometimes they kill deer and 26 animals.In fact,they like 27 animals better like rabbits.Adult bears are 28 than most other animals because they can think of something.Have you seen how 29 they beg for（讨要）sweets and food in the zoo?They are our friends 30 we should try our best to protect them.
21.A.short B.long C.big D.beautiful
22.A.something B.nothing C.everything D.some things
23.A.so B.as C.than D.for
24.A.children B.students C.pupils D.hunters
25.A.hearing B.eyesight C.eyes D.ears
26.A.another B.the other C.other D.others
27.A.small B.big C.fat D.large
28.A.more friendly B.prettier C.cleverer D.not cleverer
29.A.clever B.sad C.cleverly D.sadly
30.A.because B.but C.or D.so