de phong dich covid-19 hai ban long va thao cung nhau du dinh thu gom 100 chiec khau trang N-95 trong mot so ngay quy dinh nhung khi thuc hien moi ngay hai ban da thu gom nhieu hon du dinh 5 chiec vi vay truoc thoi gian du dinh 4 ngay hai ban da thu gom duoc 90 chiec khau trang .hoi theo du dinh moi ngay hai ban thu gom duoc bao nhieu chiec khau trang?

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18.The dog won the race. The dog is mine. ……………………………………………………………………………………………….. 19.Show me the shoes. You bought them yesterday. …………………………………………………………………………………………………. 20.Our school has a good laboratory. The students practise chemistry in this laboratory. ……………………………………………………………………………………………….. 21. Edward has just moved to France. His mother died last year. …………………………………………………………………………………………………. 22.Those are the books. He has just bought them from the bookstore. ______________________________________________________________________ 23.The book is very interesting. It was written by Jane Austen. ______________________________________________________________________ 24.The lady gave me good advice. I spoke to her an hour ago. ______________________________________________________________________- 25.Is that the computer? Your father bought it last month? ___________________________________________________________ 26.A girl was injured in the acciddent. She is now in the hospital. ___________________________________________________________ 27.A man answered the phone. He told me you were away. ____________________________________________________________ 28.A bus goes to the airport. It runs every half an hour. ___________________________________________________________ 29.I met Jane’s father. He works at the university.