1.Both teenagers and adults widely read Kien Thuc Ngay Nay. => Kien Thuc Ngay Nay.... 2.Lan and Maryam visited Ho Chi Minh's Mausoleum in Ha Noi. => Ho Chi Minh's.... 3.No one has seen Mary since 3:00. => Mary.... 4.My sister is making a birthday cake in the kitchen. => A birthday cake... 5.The gardener was planting trees in the garden at 4:00 yesterday. => Trees.... 6.All the students of the ninth form will take an English test next week. => An English text.... 7.We can prevent omicron becoming a global crisis. => Omicron.... 8.His father used to cause an accident when he was 10. => An accident.... 9.He will have someone at the garage repaint his car. => He will have.... 10.Gary got his secretary to send him a copy of the contract. => Gray got.... 11.When did you star writing that story? =>How long.... 12.They have learnt English for 5 years. => They began.... 13.We last read that novel a year ago. => We have.... 14.It is a long time since Emma paid a visit to an orphanage. => Emma has.... 15.Dorothy stopped cutting flowers since 8:00 am. => Dorothy has.... Mọi người giúp mình với ạ