改错I listened carefully,but nothing heard.

题目

改错I listened carefully,but nothing heard.
What will computers like in the future?
We should make notes before write.
He's a man of great knowledges.
How do you know what should you do?

答案

I listened carefully,but nothing【加上was】 heard.What will computers 【加上 be 】like in the future?We should make notes before 【writing】.He's a man of great 【knowledge】.How do you know what 【yo...