polar bears live mostly on__ sea ice,which they use as a pla

（ ）Polar bears live mostly on _____ sea ice.A.a B.an C./ D.t As the sea ice melts sooner each swimmer,polar bears are for do polar bears live in africa? 英语翻译Polar bears live in the Arctic.They do not stay in one p The polar ice cap ______ at the rate of 9% per decade as a r She has a big snow globe ( ) polar bears in it people living near the sea can use as many water as they lik polar bears(北极熊)(live,lives ,are living)in the north pole(北极 The polar bears look like bears,__they? How big are polar bears Why don't the polar bears feel cold after they swim in the w Polar bears are easy to survive in their i______ home.They h