Давайте рассмотрим каждое предложение и исправим ошибки:
He knows three languages, but he speaks English easiest.
- Исправления: "lounguages" на "languages", и лучше сказать "he speaks English the easiest" или "he speaks English most easily".
Исправленное предложение: He knows three languages, but he speaks English the easiest. (или He knows three languages, but he speaks English most easily.)
Last night I slept more peacefully than before.
- Исправления: "peacefullier" на "more peacefully".
Исправленное предложение: Last night I slept more peacefully than before.
Could you come to school earlier and water the plants tomorrow?
- Исправления: "Cold" на "Could", "more early" на "earlier".
Исправленное предложение: Could you come to school earlier and water the plants tomorrow?
This new computer works faster and can solve problems in no time.
- Исправления: "computers" на "computer" (если речь идет об одном), "most fast" на "faster".
Исправленное предложение: This new computer works faster and can solve problems in no time.
Итак, исправленные предложения:
- He knows three languages, but he speaks English the easiest.
- Last night I slept more peacefully than before.
- Could you come to school earlier and water the plants tomorrow?
- This new computer works faster and can solve problems in no time.