几个现在完成式的英语问题.

几个现在完成式的英语问题.
1.already和yet的区别.
2.You are late.The film began 10 minutes ago.(同义句)
A:You are late.The film _____ _____ _____ for 10 minutes.
B:You are late.It ____ten minutes since the film _____.
要求说明每个题的知识点.

1.alreay 用语肯定句 yet 用于否定句
2.A.the film has already began for 10 minutes.
begin 瞬间动词 has already began for 10 minutes 现在完成时表示该事件10分钟前已经发生
B.It has been ten minutes since the film began.
这里用 it has been 表示从开演到现在已经持续了10分钟了 has been doing 表示事件已经发生而且延续到现在