【题目】Though he is very busy, he keeps running in the park every morning to stay.
A.in effect
B.in charge
C.in shape
D.in fashion

【答案】C
【解析】句意：虽然他很忙，但他每天早上在公园里跑步以保持体形。A. in effect“生效”；B. in charge“负责”； C. in shape“在外形上”；D. in fashion“流行”。故选C。