only time with tell

I am writing to tell you that we were quite disappointed with your service. We had booked a table, but when we went there at the time as arranged, only to be told there were no seats available.

我想写信告诉你，我们对你的服务非常失望。 我们已经预订了一张桌子，但是当我们按预定的时间去那里的时候，却被告知没有座位了。

Only time will tell whether the Harry Potter series has the qualities of say Lord of the Rings or it will fade with the upcoming seasons.

只有时间知道哈利·波特是否会和指环王一样优秀，或者会渐渐被淡忘。

She returned his affection to some extent, although she seems to be developing an interesting relationship with Ron which might grow into something more. Only time will tell.

她在一定程度上也回应了他的好感，虽然看上去她和罗恩之间有趣的关系会有更多的变化，这只有时间知道了。