viết lại câu đã cho không đổi nghĩa 1.Someone knocked at the door in the middle of our lunch =>While we 2.He felt sick from eating too many cakes => Because he

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1. While we were having lunch, someone knocked at the door.
2. Because he ate too many cakes, he felt sick.

hoặc

1. While we were eating lunch, someone knocked at the door.
2. Because he consumed too many cakes, he felt sick.

Because of eating too many cakes, he felt sick.

While we were eating our lunch, someone knocked on the door.

Because he had eaten too many cakes, he felt sick.

While we were having lunch, someone knocked at the door.