private void buttonGoBack3_Click(object sender, EventArgs e)
{
GrammarExercises openForm = new GrammarExercises();
openForm.Show();
Visible = false;
}
private void labelClose_Click(object sender, EventArgs e)
{
this.Close();
GrammarExercises openForm = new GrammarExercises();
openForm.Show();
}
private void buttonGrammarExercises_Click(object sender, EventArgs e)
{
MainForm closeForm = new MainForm();
closeForm.Close();
GrammarExercises gramatica = new GrammarExercises();
gramatica.Show();
Visible = false;
}