Never before _______ so rapidly developing as it is today.
A
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。
Duringthepasttwodecades,researchhas________ourknowledgeofdaydreaming.
Fishis________andexpensiveatthistimeoftheyearinthisarea.
Thestudentsarerequiredto________themainideasofthearticleintheirownwords.