Sentence examples for can do is from inspiring English sources

All it can do is contribute".

The best they can do is try.

All we can do is ask.

All we can do is sit here".

The least we can do is listen.

The best you can do is Wikipedia.

All you can do is remain honest".

All you can do is react.

All you can do is your best.

All I can do is offer advice".

All I can do is sigh.