A.oh,don't worry.i will help you w_____ your m_____.B.you are so k____.

A.oh,don't worry.i will help you w_____ your m_____.B.you are so k____.
1.the tiger is from the mountain Changbai of _____.(China America Japan Eneland)
2.we all like animals because they _____ friends.(we our us ours)
3.we often come to the zoo and see ___ on sunday.(they their them theirs)