Question

A Add commas where they are needed. Not every sentence needs a comma.

1. Bike riding brisk walking and swimming are good forms of exercise.
2. The victims of the hurricane were stunned for they had lost everything.
3. Crabs and lobsters are both shellfish.
4. The quiet obedient dog is a pleasure to be around.
5. The pilot boarded the plane checked her instruments and prepared for takeoff.
6. The tornado took a heavy toll in lives and property.
7. Susan wanted to explore the cave but her parents had forbidden it.
8. He and his wife skied in the Alps and enjoyed it very much.
9. We had lessons in swimming canoeing and archery.
10. The radio announcer warned of the storm but no one paid any attention.

Answer 1

1. after riding and after walking
2. after stunned
3. not needed
4. after quiet
5. after plane and after instruments
6. not needed
7. after cave
8. not needed
9. after swimming and after canoeing
10. after storm

Answer 2

Answer:
Hi! Just a heads up that my answers may not be entirely accurate.

Step-by-step explanation:

Bike riding, brisk walking, and swimming are good forms of exercise

The victims of the hurricane were stunned, for they had lost everything. (May not need the comma)

Crabs and lobsters are both shellfish.

The quiet obedient dog is a pleasure to be around.

The pilot boarded the plane, checked her instruments, and prepared for takeoff.

The tornado took a heavy toll in lives and property.

Susan wanted to explore the cave, but her parents had forbidden it.

He and his wife skied in the Alps and enjoyed it very much.

We had lessons in swimming, canoeing, and archery.

The radio announcer warned of the storm, but no one paid any attention.

Once again, sorry for any mistakes I make.