Neverbefore_______sorapidlydevelopingasitistoday．
A、hasourcountrybeenA
此题考查倒装句。否定词位于句首，句子应该部分倒装。句意：我们国家从来没有像今天一样进步如此迅速。
Thegovernmentfinally________allthedocumentsrelatingtothewar.
Peoplewhocan’t_______betweencolorsaresaidtobecolor-blind.
Fishis________andexpensiveatthistimeoftheyearinthisarea.
Thevehiclewastravelingatspeeds________90milesperhour.
When_______,waterwillbeturnedintosteam.
