1.
The boy next door made noise all night, which annoyed me a lot.
That the boy next door made noise all night annoyed me a lot
2.
I will give you everthing you need
Whatever you need I will give you
3. That the farmer worked too hard leaded him to become exhausted.
4. It is not necessary for him to have paid attention to his lessons
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which có thể thay thế cho cả mệnh đề phía trước
That + mệnh đề có thể là chủ ngữ của một câu