look at是什么时态的标志

　　Look at the time! We'll be late.

　　看几点了！我们要迟到了。

　　You can look at the issue from many different angles.

　　你可以从很多不同的角度看这个问题。

　　Make sure you get a good look at their faces.

　　你一定要仔细看清他们的面孔。

　　Look at the time ─ it's much later than I thought.

　　看看时间吧，比我想象的要晚多了。

　　Don't look at me like that.

　　别这样看着我。