阅读短文，用动词的适当形式填空

     A little monkey, Jackie by name, (1)__________(live) with his parents at the zoo. Every day alot of children (2)__________(come) up to his cage to give him some sweets. He loves sweets, buthe can't eat any more. He (3)__________(have) a bad toothache. The doctor comes (4)__________(see) the little monkey. The doctor explains the monkey shouldn't eat sweets. They (5)__________(be) bad for his teeth. The zoo keeper (6)__________(not, know) what to do. The doctor (7)__________(tell) him to fix a special sign with" (8)__________(not, give) Jackie any sweets! " on his cage. Jackie likes (9)__________(eat) sweets very much, so he (10)__________(try) to take down the sign, but he fails.He feels very sad now.