Brain training puzzles really can boost intelligence, a study shows for the first time. While previous studies have suggested that number puzzles can improve memory and crosswords can expand vocabulary, scientists (51)............... now proved that mental exercise really does (52) ... the other group. Moreover, the more participants trained, the more problems (60)................. could solve
đã trả lời
9 tháng 12, 2019
trong Tiếng Anh lớp 9
trannhat900 
phamngoctienpy1987844 
vxh2k9850 
Nqoc_baka 