问题
选择题
He was reading his book, completely _______ to the world.
A．lost
B．losing
C．to lose
D．to have lost
答案
答案：A
A。(be) lost to sth 为习语，意为“不再受某事物的影响”、“将某事物置之度外”。
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He was reading his book, completely _______ to the world.
A．lost
B．losing
C．to lose
D．to have lost
答案：A
A。(be) lost to sth 为习语，意为“不再受某事物的影响”、“将某事物置之度外”。