1 We have learned English for 10 years --> 2 It has been a long time since we last met . --> 3 Ms Ann has not taken part in any voluntary programs for 4 years --> 4 I have not met my family since last Christmas --> 5 How long have you lived here ? --> 6 The volunteers have provided free food and fresh water to homeless people since yesterday --> 7 The doctor has quitted his job in the local hospital and moved to the central hospital for 2 days --> 8 The children have not had a long vacation since last year --> 9 They have not visited their parents for 3 months --> 10 It has been 2 years since we broke up --> anh chị làm hộ em với em cần gấp vào sáng nay