The research utilized quantitative research with a quasi-experimental design. A total of 287 students from class IX at SMP Negeri 12 Pematang Siantar was chosen as the population. The sample was split into two classes: the experimental class (IX 1), which had 28 students and used guided reading, and the control class (IX 5), which had 28 students and utilized lectures. The research instruments were pre-test and post-test of multiple choice of narrative text. To process statistical data, the researcher utilized SPSS version 26. The Kolmogorov-Smirnov and Shapiro-Wilk showed results of 0.200 (experimental) and 0.140 (control). The experimental group's post-test mean score exceeded the control group’s post-test by 70 points, leading to the acceptance of the alternative hypothesis and rejection of the null hypothesis. This demonstrates that the guided reading strategy significantly enhances students' narrative text comprehension.

Suffix is one component that can be used to form new words in English. The suffix used in this case is a beginning suffix. The purpose of this study to finding the form, function and meaning of the beginning suffix found in "WASHINGTON DC" in the Report Text. The form, function and meaning of the beginning affixes found are classified According to the theory by Plag (2002) in his book "Word-Formation in English." The results of this study indicate that there are four types of suffix, namely "nominal suffixes," "verb suffixes," "adjectival suffixes" and "adverbial suffixes." In this study the author uses qualitative research, to analyze the suffix in the report text "Washington DC". Qualitative research as the study of the real of phenomena mainly suitable for answer the questions of why the thing is not inspect, and focusing on intervention improvement. It can be said that there are four forms of suffixes found in the data source, namely nominal suffix, verbal suffix, adjectival suffix and adverbial suffix. In Indonesia there are seven types of suffixes, namely: -an, -I, -kan, -kah, -ku, -mu, -nya, -pun. Research findings showed that beginning suffixes was found in the washingthon D.C., they are suffix -al, -s, -ist, -ion, -ing, -ed, -ly, - ous, -ence, in Indonesia we found suffixs -kan, -an, -nya.