Lauren Smith was pletely in watching TV, so she didn’t hear the step downstairs.
A. absorbed
B. attached
C. abused
D. abandoned
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(答案→)A. absorbed
B. attached
C. abused
D. abandoned
解析：词义辨析。Absorbe吸收；attache附加，伴随；abuse滥用，辱骂； abandone遗弃。句意：劳拉史密斯完全沉浸于看电视，因此他没有听见楼下的脚步声。 Be absorbed in沉浸于…; 故选A。