Help Ss revise the main tenses and structures that they have learnt in grade 8. Give Ss some exercises to help them remember the tenses and gives Ss some wrong sentences, ask Ss to find the mistakes and correct. When I came, they are singing aloud. We lived in this city since 1996. My house is repaired by them the end of the lesson, Ss will be able to make and respond to introduction, compare the difference and the similarity.