Present Simple and Continuous

Hey guys,

I would be thankful if you could help me with those exercises.

A.) Complete the sentences with present simple / present continous form of the verbs in the brackets.

1.I can't play tennis this weekend: I'm going (go) to the mountains with my family.

PS. I used present continous to stress that is the planned activity. Is it ok?

B.) Correct any mistakes in the highlighted phrases.

3. Do you recognize the man in that photo? It's our old maths teacher.

I would change for : Don't you recognize...

Thank you for your help. I would appreciate any advices.

Dawid