问题
选择题
—Watching TV too much _______ bad for your eyes.
—I’ll go to bed right away.[ ]
A. is
B. are
C. was
D. be
答案
答案：A
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—Watching TV too much _______ bad for your eyes.
—I’ll go to bed right away.[ ]
A. is
B. are
C. was
D. be
答案：A
，是对称的平面结构