1. ✓            

2. ✓            

3. ✓           

4. ✗

Transcript:

1. A: What’s he doing?

B: He’s building a campfire.

2. A: What’s she doing?

B: She’s taking a photo.

3. A: What are the girls doing?

B: They’re playing card games.

4. A: What are the children doing?

B: They’re playing tug of war.