Ex 1.Change the type of the sentence. She helped her mother with cooking yesterday (-, ?) изменить предложения и поставить в отрицательную и во форму.Kim didn't like the film+, ?)таки тут изменить.Did Mike play football in summer?(-, +)

Did she help her mother with cooking yesterday ?

She didn't help her mother with cooking yesterday.

Kim likes this film.

Kim likes this film?

Mike played football in the summer

Mike didn't play football in the summer.

ответ: 1. Did she helped her mother with cooking yesterday? (?)

She doesn't helped her mother with cooking yesterday ( - )

2. Kim like this film (+)

Kim like this film? (?)

3.Mike play football in summer (+)

Mike didn't play football in summer ( - )

The barcode is converted by the scanner into electrical pulses.the price and the description of the product are sent by the branch computer to the EPOS till. the barcode is read by the scanner. the sale of the product is  recorded by the branch computer. the item and price are shown( iили showed) by the till. the item is scanned by the checkout operator. the pulses are sent by the scanner to the branch computer. the item is printed by the till on thepaper receipt.the stock file for product matching the barcode EAN is searched by the branch computer.

1.The scanner converts the barcode into electrical pulses. The barcode is converted into electrical pulses by the scanner.
2. The branch computer sends the price and description of the product to the EPOS till. The price and description of the product are sent to the EPOS till by the branch computer. 
3. The scanner reads the barcode. The barcode is read by the scanner.
4. The branch computer records the sale of the product. The sale of the product is recorded by the branch computer.
5. The till shows the item and price. The item and the price are shown by the till.
6. The checkout operator scans the item. The item is scanned by the checkout operator.
7. The scanner sends the pulses to the branch computer. The pulses are sent to the branch computer by the scanner.
8. The till prints the item and price on the paper receipt. The item and price are printed on the paper receipt by the till.
9. The branch computer searches the stock file for product matching the barcode EAN. The stock file for product matching the barcode EAN is searched by the branch computer.