他想给我们所有人留下深刻印象的尝试不太成功。

His attempt to impress us all didn't quite ___come ___off.

尽管计划周密，活动的某些部分并未如预期般成功。

Despite careful planning, parts of the event didn't ___come ___off as expected.

这次复杂的营销活动圆满成功，超出了所有目标。

The complex marketing campaign ___came ___off flawlessly, exceeding all targets.