1、My brother joined the army two years ago.(改同义句)
My brother_ _ _ the army for two years.
2、The film is more exciting than the other one.(改同义句)
The film is the _ _ of the three.
3、the boy gave up studing last year.(改同义句)
the boy _ _ _ school last year.
4、the film began five minutes ago.(改同义句)
the film _ _ _ for five minutes.