You can go out you promise to be back before 11 o’clock.A. so thatB. as far asC. so long

问题补充：

You can go out you promise to be back before 11 o’clock.

A. so that

B. as far as

C. so long as

D. in case

答案：

A. so that

B. as far as

(答案→)C. so long as

D. in case

解析： as/so long as在此表示只要