1. When his mother came home from work, he was lying on the sofa, _________. (absorb)
母亲下班回家的时候，他正躺在沙发上专心致志地看书。
2. He has been suspected of taking government funds for himself and _________________ by the police. (investigate)
他已被怀疑挪用政府资金，正在接受警方调查。
3. The outdoor training is an exercise ______________________ build teenagers’ confidence. (design)
户外训练是旨在增强青少年自信心的一种运动。
