The computer was used every day since we bought it.句子改错
问题描述：
The computer was used every day since we bought it.句子改错
答
把was 改为 is。因为句子中有 every day表示一般现在时的时间状语，句子应用一般现在时，且用被动语态，因为主语是computer.
句意：这台电脑自从买来以后每天都在使用中。
答
was used改为has been used