he stayed in Germany for half a year and he will go to Germany again.
A. Before long; before long
B. Long before; long before
C. Before long; long before
D. Long before; before long
网友回答
A. Before long; before long
B. Long before; long before
C. Before long; long before
(答案→)D. Long before; before long
解析：考查词组：Before long;很久以前，before long不久后，句意：很久以前他呆在德国半年，他不久就会再次回到德国。选D。