In the first question, the answer would be b. si, hago mucho ejercicio
In the second question the answer is d. las uvas
I'm not sure what the answer for the third is but I can translate so you can decide, los batidos translates to smoothies, and los estados unidos translates to the United States. Those are all the words that are in Spanish in the third question, sorry I can't help you in the last question since I don't know the correct answer