单选题 —I tried to clean the inside of my computer and I"ve put all the bits back but I have two bits left over.
—______ I warned you not to take apart in the first place.
【正确答案】 A
【答案解析】[解析] 在本题中,说话者对听话者说“我想要清理电脑的内部并且在组装完全部零件之后落下两个零件未能组装好”,根据听话者的后半句回答“我起初警告过你先不要拆开电脑”可知,A项符合题意。