my brother was in his room ,______ in his experiment.a:absorb b:to absorbc:absorbing d:absorbed请问选哪一个答案,为什么?
问题描述：
my brother was in his room ,______ in his experiment.
a:absorb b:to absorb
c:absorbing d:absorbed
请问选哪一个答案,为什么?
答
选C，表示同时发生的一个状态，都是由主语MY BROTHER做的
答
选c 因为第一句已经说明是过去进行时!主动语态!所以选c
答
d:absorbed
答
c: absorbing
答
答案是D.be absorbed in something 的意思是“全神贯注于”.