a. He started working as a bank clerk 3 months ago. => He has................................................................................................................. b. She began playing games at 2 o’clock. => She has................................................................................................................. c. Mai has worked for this company since June. => Mai started................................................................................................................. d. They have cleaned the streets for 2 hours. => They began................................................................................................................. e. Mai last met him 10 years ago. => Mai hasn’t................................................................................................................. f. My father last told me this story when I was 5. => My father hasn’t ................................................................................................................. g. It has been 5 years since we first flew to Singapore. => We have................................................................................................................ h. The last time we called each other was 5 months ago. => We haven't............................................................................................................. k. It is a long time since we last met. => We haven't............................................................................................................. l. Minh hasn’t eaten sushi since last year. => Minh last................................................................................................................. m. My friends haven’t met together for 10 years. => My friends last ................................................................................................................. n. My uncle started to drive to Hue 2 hours ago. => My uncle has ................................................................................................................. l. When did you have it? => How long...........................................................................................................?