"今天天气真好，不是吗？" "我知道——希望它能持续。"

"It's a beautiful day, isn't it?" "___I ___know - let's hope it lasts."

"这次考试真的很难。" "我知道。我每道题都做得很吃力。"

"This exam was really difficult." "___I ___know. I struggled with every question."

"我们需要尽快完成这个项目。" "我知道。我正在处理呢。"

"We need to finish this project soon." "___I ___know. I'm working on it right now."