她这些天心事重重。

She ___has a lot ___on ___her ___mind these days.

我心事太多，无法专注于工作。

I ___had too much ___on ___my ___mind to focus on work.

当你心事重重时，很难入睡。

When you ___have something ___on ___your ___mind, it's hard to sleep.