We _____ leave. David is very sad.
You _____ be so strict with her!
You _____ eat more vegetables if you want to lose weight.
She _____ stop smoking, it's bad for her health.
You _____ work harder if you want to have better marks.
You _____ be doing your homework instead of playing video games.
He _____ drive so fast! He will have an accident one day!
They _____ drink so much alcohol.