Quotations
You have to learn the rules of the game. And then you have to play better than anyone else.
Albert Einstein
Why do you have to click the Start button to shut down? The same reason you turn the ignition key to shut off your car. More English practice
Have To - English Grammar.
Should / Shouldn't - English Grammar
Read the grammar reference about Should / Shouldn't modal verb.
Then do the exercises on Should / Shouldn't Practice page.
Should and Shouldn't - Use
Should is a modal verb like can or must.
Positives
You should take it easy.
She should go to bed early.
We should go somewhere exciting for our holiday.
Negatives
You shouldn't get angry.
He shouldn't work so much.
I shouldn't do it if I were you.
Questions
Should we tell her the truth?
What should I do?
Shouldn't we try to finish it now?
Now do the exercises on Should / Shouldn't Practice page.