Mar Levine, ____ scientist at University of Pennsylvania, US, has found that competitive eaters have stomachs that can expand like ____ balloon.
A.a; a | B.a; the | C.a; / | D.the; a |
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Mar Levine, ____ scientist at University of Pennsylvania, US, has found that competitive eaters have stomachs that can expand like ____ balloon.
A.a; a | B.a; the | C.a; / | D.the; a |