【題目】Don't play games on the computer all day, It's ______ to your eyes.

A. harmful

B. useful

C. helpful

D. thankful

【答案】A

【解析】句意:不要整天在電腦上玩游戲,對你的眼睛有害。本題考查形容詞。A. harmful有害的;B. useful有用的;C. helpful有幫助的;D. thankful感激的。根據(jù)句意選A。

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