Viết các phương trình phản ứng của clo tác dụng với: Ca, K, Fe, FeCl2, H2O.Gọi tên sản phẩm.

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$Exercise1$ : Chia động từ trong ngoặc ở đúng thời 1/ Minh (be) .............very tired when I (see)............. him yesterday. 2/ My father usually (work) ............8 hours a day, but yesterday he (start) at 9.00 a.m and (finish) ................at 9.00 p.m. 3/ It usually (rain)............ a lot in summer but it (rain) ..................a little last summer. 4/ -When John (leave) ...................home ? -He (leave) ..................5 minutes ago. 5/ What you (do) ......................................last Sunday ? - I (have) .................................a holiday in New York. $Exercise2$: Đọc đoạn văn sau, dùng từ gợi ý đặt câu hỏi và trả lời Last year David went to Barcelona for his holiday. He went by air and stayed in a big hotel in the city centre. He stayed there for 5 days. When he was there, he visited many beautiful places in Barcelona. He took many photographs and bought a lot of souvenirs for his friends. He enjoyed the holiday very much. 1/ When / David / go / Barcelona ? ............................................................................................... 2/ How long / stay ? .................................................................................................... 3/ How / he / go / Barcelona? .................................................................................................... 4/ Where / he / stay ? .................................................................................................... 5/ he / take / a lot / photographs ? .................................................................................................. 6/ What / he / buy ? .................................................................................................... Các bn giúp mik với,mik thanks nha