问题
完形填空
________(occupy) with his work in the Satellite Launch Site, he could not spare any time to stay with his parents though they are very old.
答案
Occupied
句意：虽然他的父母都已年老，但是由于忙于卫星发射中心的工作他没能抽出任何时间去陪伴父母。be occupied with“忙于……”。此处可看作形容词短语作原因状语。