Modal verbs

There was a time when I___stay up very late.

If you want to understand people better, you___study psychology.

My grandmother is eighty-five, but she___still read and write without glasses.

I don't want to do it, but I___.

You___ take your umbrella. It is not raining.

People___ cross the street at a pedestrian crossing.

You___ do everything if you really want it and believe in yourself.

___I come with you?