Tham khảo tài liệu 'the complete guide to the toefl ibt writing part 11', ngoại ngữ, toefl - ielts - toeic phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Writing Tutorial Grammar 709 Adjective Clause Marker Use Example who Subject people A neurologist is a doctor who specializes in the nervous system. whom Object people This is the patient whom the doctor treated. whose Possessive Mr. Collins is the man whose house 1 rented people things which Subject Object The assignment which was due last week took me four hours things to complete. that Subject Object Art that is in public places can be enjoyed by everyone people things that as subject The painting that Ms. Wallace bought was very expensive. that as object where Adverb That is the site where the bank plans to build its new headquarters place when Adverb This is the hour when the children usually go to bed. time Like all clauses adjective clauses must have a subject and a verb. In some cases the adjective clause marker itself is the subject in some cases there is another subject. The painting was very expensive. Ms. Wallace bought it. The painting that Ms. Wallace bought was very expensive. The adjective clause marker in the joined sentence replaces it the object of the verb bought. In the joined sentence the adjective clause keeps the subject Ms. Wallace that it had in the original sentence. Notice that the inclusion of the pronoun it in the joined sentences above would be an error. INCORRECT The painting that Ms. Wallace bought it was very expensive. The assignment took me four hours to complete. It was due last week. The assignment which was due last week took me four hours to complete. The adjective clause marker in the joined sentence replaces it the subject of the second original sentence. In the joined sentence the marker itself is the subject of the adjective clause. Writing 710 Section 4 Guide to Writing In some adjective clauses the relative pronoun that may be used in place of which or who. These sentences are called identifying adjective clauses also called restrictive adjective clauses . The information in the clause is needed to identify the noun. .