Bears ______ fat stores throughout the summer and fall to have energy enough to last them through wi...
2022-11-18 08:48:24 67次 2015届黑龙江省高二上学期期末考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Bears ______ fat stores throughout the summer and fall to have energy enough to last them through winter sleep.
A. build upB. pack upC. bring upD. take up
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