---I have sore eyes.  ---You _____ play computer games too long.
A．mustB．shouldn’t
C．had betterD．don’t
B

試題分析：句意:---我的眼睛很痛。---你不應該玩電腦游戲太久了。A. must 必須； B. shouldn’t 不應該；  C. had better 最好；D. don’t不要。由句意可知，不應該。故選B。
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