The words “held back” in 1st paragraph means “______”. A. forced to study in lower classes B. prevented from advancing C. made to lag behind in study D. made to remain in the same classesĐoạn văn57/96The words “held back” in 1st paragraph means “______”. forced to study in lower classesprevented from advancing made to lag behind in study made to remain in the same classesGiải thíchChọn B