1、She joined the party last year. She has been a party member for a year 2、My sister caught a cold last week. My sister has got a cold since last week 3、The film have been shown for five minutes
join、 eg: join the party -- be a Party member /be in the Party join the army -- be a soldier /be in the army began、be on eg: The film began at 5:00 -- The film has been on ... catch a cold -- have a cold