... form: 1.If Ba (come)here tomorrow,I’ll phone you 2.Nhan used to (go) to the sea when she lived in Hai Phong 3.Nam suggested(take)showers instead of baths to save water 4.Nga’s house (build) in 199 5 ... English 9 (Unit 9 ) N2 I.Combine these sentences using Who, whom , which, when or where: 1.He gave me the tickets.He bought them yesterday 2.That ... (build) in 199 5 5.Tom enjoys(collect)strange stamps 6.If people (save)energy ,there will be no shortage of electricity 7.The principal(talk) to our teacher when he arrived 8.My uncle (live) in HoChi...