Odd one out (Connect 4 Unit 1)

Write the odd one out: اكتب الكلمة المختلفة:

1- esophagus - lungs - intestine - raise
2- oats - healthy - vegetables - wheat
3- produce - raise - rice - feed
4- breakfast - lunch - sleep - dinner
5- cold - walk - hot - healthy
6- let's - exercise - walk - wash
7- scrape - run - sprain - nosebleed