These Exercises To Strengthen Core Are Better Than Standard Sit-ups

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These Exercises To Strengthen Core Are Better Than Standard Sit-ups

"those / these" are determiners and are used before nouns to refer to a particular group of things / people, e.g. these people / those rules / those buildings. Update: 题主问的是What are those? 然后他.

17++ Abdominal exercises no sit ups machine | coreabsworkout

Exercises Strengthen Core Stock Illustration 2208170881 | Shutterstock