Production ecrite:voyage en train​

What does the underlined word mean in the following sentence? qu'est-ce que tu vas commander? a.to recommend b.to command c.to continue d.to order

Explain what has to happen when you use être instead of avoir for the formation of the passé composé? il an english explanation with steps if possible

Is this grammatically correct? est-ce qu'ill regarde la televisiona. correctb. incorrect