玛丽一小时前去看电影了的英文
在英语中，我们可以用以下几种方式表达“玛丽一小时前去看电影了”：
1. Mary went to watch a movie an hour ago.
2. One hour ago, Mary went to see a movie.
3. The movie was watched by Mary one hour ago.
4. An hour ago, Mary went to the cinema to watch a film.
5. Mary watched a movie one hour ago.
以上是几种常用的表达方式，你可以根据具体情境选择适合的表达方式。
例如：
It has been an hour since Mary went to the cinema to watch a movie.（玛丽一小时前去电影院看电影了）
Mary went to see a movie in the cinema an hour ago.（玛丽一小时前在电影院看了电影）
以上是该句的不同表达方式，可以根据具体需要选择使用哪种表达。