问题
选择题
Polar bears live mostly on___________sea ice,which they use as_________ platform for hunting seals. [ ]
A. a; a
B. a; the
C. /; a
D. the; /
答案
答案：C
搜题请搜索小程序“爱下问搜题”
Polar bears live mostly on___________sea ice,which they use as_________ platform for hunting seals. [ ]
A. a; a
B. a; the
C. /; a
D. the; /
答案：C