Tham khảo tài liệu 'anh văn toefl structure-015', ngoại ngữ, toefl - ielts - toeic phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Anh văn TOEFL Structure-015 1 Before 8000 B. C. wheat did not grow as prolifically it does today. u a like u b as u c for u d than 2 Both nickel and iron are whitish metals . u a that are attracted by magnets u b that magnets are attracted by them u c are attracted by magnets u d magnets that attract them 3 The bark of some species of oak trees yields a substance used in --- leather. u a treating u b to treat u c its treatment u d it treats 4 Although phosphorus is an essential constituent of all living creatures is among the least abundant of the mineral nutrients u a what u b it u c still u d .
