The boy was sitting oin his chair leisurely,____ in the magazine he was reading.A.absorbedB.absorbingC.to be absorbedD.being absorbed为什么选A不选D?

问题描述:

The boy was sitting oin his chair leisurely,____ in the magazine he was reading.
A.absorbedB.absorbingC.to be absorbedD.being absorbed
为什么选A不选D?