7th May Ejercicios de gramática on line . Present simple, Affirmative, Negative and questions.

En los siguientes enlaces hay ejercicios de gramática para practicar on line

Exercises - affirmative 

1. Present: forms and pronouns
2. Present simple - affirmative forms
3. Present simple - exercises
4. Present simple forms - quiz
5. Affirmative forms - exercises
6. Present simple: third person -s
7. Present simple forms: -s / -es
8. Present simple - multiple choice
9. Affirmative forms 1: write
10. Affirmative forms 2: write
11. Present tense - exercises
12. Simple present: third person -s
13. Simple present: third person -s
14. Simple present - multiple choice
15. Simple present - affirmative
16. Affirmative sentences 1
17. Present simple multiple-choice

Exercises - negative forms 1

1. Negative forms and pronouns
2. Don't / doesn't - negative
3. Present simple - negative forms
4. Don't / doesn't - write 1
5. Don't / doesn't - write 2
6. Write the negative sentences
7. Don't or doesn't - exercises
8. Present simple - negative
9. Does not like & do not like
10. Negations - simple present
11. Present simple - negative forms
12. Negative - write
13. Change to negative form
14. Negations in the simple present
15. Present simple - negative
16. Present - negation

Para questions os dejo el enlace

Exercises with questions