Never before _______ so rapidly developing as it is today．
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。
The outline of rooftops and chimneys ________ against the pale sky.
Iunderstoodfromherthatyouundertookotherimportantwork______.
Theoceansdonotsomuchdividetheworld_______uniteit
During the past two decades, research has ________ our knowledge of daydreaming.
Pleasewriteareport_______theabovesubjectsaretobecovered.
