I’m sorry to tell you it is nearly five months smith got injured in the leg, but I think it won’t be long he pletely recovers.
A. after; when
B. before; since
C. that; when
D. since; before
网友回答
A. after; when
B. before; since
C. that; when
(答案→)D. since; before
解析：考查固定句型。It is +一段时间+since 从句 （一般过去时） It won’t be long before +从句 （一般现在时）故答案为D。