Question: How can you do sit ups without straining your neck?
Options:
If you'll press your tongue against the roof of your mouth while doing sit ups it will stop you from straining your neck.
If you'll press your foot against the roof of your mouth while doing sit ups it will stop you from straining your neck.
Answer: If you'll press your tongue against the roof of your mouth while doing sit ups it will stop you from straining your neck.