（题文）The edictionary is ________ to us, especially when we want to look up new words. A. thankful B....
2022-10-18 02:28:44 207次 人教新目标2018届九年级英语全册Unit 4综合练习题 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
（题文）The edictionary is ________ to us, especially when we want to look up new words.
A. thankful B. helpful C. careful D. painful
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