Exercise 6:Point out,which question word is used for each underlined part. 1.St Patrick's Day takes place on March 17th 2.Spring came late this year. 3.Once a year,my father helps me paint my room. 4.In Vietname ,Mid-Autumn festival is the second-most imortant festival 5.They often go out and have dinner in expensive restaurants 6.February is the month of festivals in Vietnam 7.Sai Gon city was renamed HCM City many years ago 8.The construction of this building started in 1997 and finished in 2000 9.I have used this computer since 2007 10.The teacher took us to the museum yesterday 11.We went the museum to learn and have fun together 12.My father helped me by giving me useful advice 13.I visit my grandparents in America every two years 14.Tom wrote me a letter to apologize for what he said 15.We visit the museum every year