Question

【题目】I _____ his invitation because I had to look after my sister.

A. turned on B. turned down C. turned off

Answer 1

【答案】B

【解析】

句意：我拒绝了他的邀请，因为我必须照顾我的妹妹。A. turned on打开；B. turned down拒绝；C. turned off关掉。根据题意，故选B。