问题补充:
Mary heard somebody call her, so she turned to see who it was..
A. off
B. out
C. up
D. around
答案:
A. off
B. out
C. up
(答案→)D. around
解析:词义辨析。turn off意为“关掉;关上”, turn out “生产”, turn up 为“把(声音)调大一点”, turn around 指“转身”。由句意“玛丽听到有人叫她,就转身看一下是谁(在叫她)。”可知,用turn around,故选D。