【正文】
y skillsW=word usage mistakeP=punctuation mistakeS=spelling mistakeM=missing wordG=grammatical mistakePracticeStudy skillsTry to correct the article on Page 117.are (G)factories (G)be formed (G)wisely (W), (P)action (W) environment (S)try to produce (M) . (P)try one’s best to do…plant more tr