1) MODAL VERBS: General points

Wich rules are correct?
1) Don't end in -s in the third person singular present simple.




Practice exercice
1) MODAL VERBS: Geneal Points
Correct the sentences if necessary.Two senteces are correct.
1.Can you be quiet?
2. Should we study all of these verbs?
3.She can speak English very well.
4. She must be very intelligent (this is correct)
5. People mustn't carry guns.
6. I can't visit New York next year. (this is correct)