单选题 He often stopped at the sound of his own steps and was afraid to look ______ his shoulder.

【正确答案】 A

【答案解析】固定搭配题。look over one's shoulder意为“回头看”；look back意为“向后看，回顾”；look round意为“环视”。本句大意为：他经常被自己的脚步声吓住不敢往前走，而且还不敢回头看。