－I always take care when doing papers on the computer. －You meant it! One cannot be too w

问题补充：

－I always take care when doing papers on the computer.

－You meant it! One cannot be too working on it.

A. nervous

B. sure

C. anxious

D. careless

答案：

A. nervous

(答案→)B. sure

C. anxious

D. careless

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