-It's useful for the deaf people to learn sign language. -Yes, it's a major way of _____ for them. A...
2022-11-28 03:26:42 39次 2016年初中毕业升学考试（江苏连云港卷）英语（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
-It's useful for the deaf people to learn sign language.
-Yes, it's a major way of _____ for them.
A. suggestion B. vacation
C. production D. communication
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