1、as we all know ,polar bear live mostly on__sea ice,which t

1、as we all know ,polar bear live mostly on__sea ice,which they use as____platfrom for hunting seals.为什么是答案是 ：/ ；a
2.Bruse is never willing to change any of his opinoins.It's no ues____with him.为什么是答案是 ：arguing
3.Was it when he was climbing the mountain____the writer got hurt?选择C
A.when B.how C .that D.where
4.The two players congratulation ench other ___wining the match by hugging.
A in B with C to D on为啥选择D
5.____make him feel embarrassed,i didn't point out his mistakes in public.
A.IN order not to B.So as not to 为啥选A