It was she was about to go out the telephone rang.A. when ; thatB. so; thatC. before; the

问题补充：

It was she was about to go out the telephone rang.

A. when ; that

B. so; that

C. before; then

D. when; before

答案：

(答案→)A. when ; that

B. so; that

C. before; then

D. when; before

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