【題目】(題文)The edictionary is ________ to us, especially when we want to look up new words.

A. thankful B. helpful C. careful D. painful

【答案】B

【解析】

句意:這個(gè)電子詞典對(duì)我們很有幫助,尤其是當(dāng)我們想查新單詞的時(shí)候。A. thankful感激的,感謝的 B. helpful有幫助的 C. careful 細(xì)心的,認(rèn)真的 D. painful痛苦的,根據(jù)句意,應(yīng)該是有幫助的,故選B。

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