They'd come on a direct flight from Athens.

他们是从雅典乘坐直达航班来的。

Tickets are available on a first come, first served basis.

票先来先买，售完为止。

What time does the news come on?

新闻报道什么时候开始？

The new working methods will come on line in June.

新的操作方法将在六月实行。

That question did come up on the test.

那道题真的在试卷上出现了。