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  • Oh, please, don't eat so many pancakes! You are ____ a diet!
Question 1:
Oh, please, don't eat so many pancakes! You are ____ a diet!
A. in
B. at
C. on
Feedback We use 'on' to speak about a situation when somebody eats according to diet rules
D. with

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Test 1-Prepositions | Intermediate English