Giúp em câu này với mng ạ Giải thích lý do tại sao khi rung nhẹ 1 cái bàn có nhiều đồ vật khác nhau bên trên thì mỗi vật dao động với biên độ khác nhau, có những vật dao động biên độ rất lớn.

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. Combine the sentences using an appropriate coordination conjunction given. ( Nối câu sử dụng từ nối cho sẵn) so but and or however 1. To stay healthy you eat more vegetable. You eat less high – fat food. - ……………………………………………………………………………………………… 2. To prevent flu, we eat a lot of garlic. We keep our bodies especially feet warm. - ……………………………………………………………………………………………… 3. It began to rain. I opened my umbrella. –………………………………………………………………………………………………… 4. It began to rain. He didn’t open his umbrella. – …………………………………………………………………………………………… 5. He worked hard. He could earn much money. – …………………………………………………………………………………………… 6. Study hard. You will fail the exam. - ……………………………………………………………………………………………… 7. Dan didn’t study for the exam. Lan did. - ……………………………………………………………………………………………… 8. I understand your point of view. I don’t agree with it. - ……………………………………………………………………………………………… 9. He lied to her. She still likes and trusts him. - ……………………………………………………………………………………………… 10. It began to get dark. I turned on the light. - …………………………………………………………………………………………………