问题
选择题
When I went in , they were ____ in a heated discussion .
A．absorb
B．absorbed
C．absorbing
D．being absorbed
答案
答案：B
题目分析：考查固定词组，be absorbed in意思“全神贯注于”，句子意思“当我进来时，它们全神贯注于激烈的讨论”，所以选B
点评：固定词组是常考内容，平时要多记多积累，遇到固定词组题时，就很容易做出正确选择