It won’t be a very long time he is in business for himself. A. untilB. whenC. beforeD. th

问题补充：

It won’t be a very long time he is in business for himself.

A. until

B. when

C. before

D. that

答案：

A. until

B. when

(答案→)C. before

D. that

解析：考查固定句型：it will/won’t be long before…，用不了多久就…，句意：用不了多久他就会有自己的生意了。选C。