Khi dạ dày của người co bóp để tiêu hóa thức ăn và giúp trộn đều thức ăn với dịch tiêu hóa. Co bóp của dạ dày thuộc kiểu biến đổi?

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1. English ( speaks , was spoken , is speaking , is spoken ) in many parts of the world . 2. ( As , Though . Because . Despite their poverty in their family , they live happily together every day . 3. I am lighting the fire so that the house ( would , wouldn't , will , won't ) be warm when they return . 4. The restaurant has excellent ( repute , reputed , reputation , reputable ) for serving some of the finest food . 5. As soon as he finishes dinner , he will take , takes , will be taking , took ) the children for a walk to nearby playground 6. ( It has , It is . That is . This is ) certain that his invention will lead to the development of production . 7. When John .............. here tomorrow , I. you . ( arrives , call / will arrive , will call / arrives , will call / is arriving , will be calling ) 8. He was interested in ( which , that , all that , all what he had seen at the exhibition . 9. ( In spite . Even though . In spite of , Despite of her lack of hard work , she was promoted . 10. We are talking about the preservation of nature , natural , naturally , naturalize ) resources . 11. I'm ( surprised , surprising , surprise , surprisingly ) that people drive on the left in this country . 12. Mr Khai wishes he had been , has been , have been , were ) in Da Lat yesterday . 13. He did the test ( as bad as , more badly than , badder than , worse than ) I did . 14. My car broke down on the way . ( because , However , Therefore , Although ) , when I got to the airport , the plane had taken off . 1 15. My mother thinks that this is ( the , an , a , x ) expensive shop .