You can go out you promise to be back before 11 o'clock. A. as far asB. so far asC. whenD

问题补充：

You can go out, you promise to be back before 11 oclock.

A. as far as

B. so far as

C. when

D. so long as

答案：

A. as far as

B. so far as

C. when

(答案→)D. so long as

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