Q. In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.___________ it became difficult to empirically prove that children __________ better in private schools, the attack __________ a new weapon: per unit cost of learning outcomes. Most of the learning outcome researches almost _______________ fail to understand the entire ______________ of education in any depth and reduces it to learning of socalled 3Rs for economic purposes.the attack __________ a new weapon
A) had invented
B) invents
C) invented
D) is inventing
✔ Correct Answer: invented
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