be up to造句

Whether to do it or not is up to you
这里up to you表示由你决定
I think I am up to this task.
我觉得我胜任这个任务

It is up to you to decide.
这事由你定夺。

It's up to you

使这个意思，能胜任。
be up to the sample．

He didn't think I was up to the job.
他并不认为我能胜任.