1. Can the students learn individually and in groups to improve their skills nowadays? - general questions
2. How can the students learn to improve their skills nowadays? -special questions
3.Can the students learn individually or in groups to improve their skills nowadays? - alternative questions
4. Nowadays students can learn individually or in groups to improve their skills, can’t they? - Tag questions
5. Can’t the students learn individually or in groups to improve their skills nowadays? - negative questions