5 различных типов вопросов к каждому из предложений:
1)A mechanism that allows trade is called a market.
2)A barter system is a system of exchange in which goods or services are traded directly for other goods and services.

We all love weekends, but not all of them are good. recently i’ve had the worst weekend in my life. as usual i was hoping to spend great time with my family  and my friends, but everything went wrong that terrible weekend. the morning of saturday started from an incident when we got up we saw that  part of our flat was flooded. our neighbors from upstairs forgot to turn off the tap water and the result was terrible. not only their bathroom but ours too was full of water. so, we spent half of the day cleaning the mess.   it goes without saying that i had to cancel my meeting with friends. that weekend we were going to visit the cinema and spend some time ice-skating. alas, these opportunities were lost. now i had to wait for the next weekend to see them. i thought things couldn’t get worse, but in the evening we got an urgent call from my grandma saying that she wasn’t feeling well. so, we didn’t have any supper and drove to her place as quickly as we could. my mum called the doctor and we stayed with her almost till midnight. i’m glad she finally felt better, but i missed my favourite sitcom. sunday wasn’t fun either, as i spent the whole day cleaning up my room and doing my homework.

1.  Everybody in our family has their own responsibilities about the house and I have them too.

2. Every day I make my bed in the morning, wipe the dust and take out the rubbish.

3. After meals, I wash the dishes.

4. Also, it is my duty to buy bread and milk.

5. The shop is not far from home and it doesn't take me long to shop.

6. Once a week, I help my mother to do other chores.

7. We clean the flat and I help her to vacuum the carpets and water the home plants.

8. It is not difficult to maintain order in the flat, if you keep the rooms tidy.

9 I sometimes walk the dog if my dad is busy.                                                                   10 These are my household duties.

1.  У каждого в нашей семье есть свои обязанности по дому, и у меня они тоже есть.

2. Каждый день утром я застилаю свою постель, вытираю пыль и выношу мусор.

3. После еды я мою посуду.

4. Кроме того, моя обязанность покупать хлеб и молоко.

5. Магазин находится недалеко от дома, и у меня не занимает много времени, чтобы сделать покупки.

6. Раз в неделю я маме делать другие дела.

7. Мы убираемся в квартире, и я ей пылесосить ковры и поливать домашние растения.

8. Нетрудно поддерживать порядок в квартире, если вы содержите комнаты в чистоте.

9. Я иногда выгуливаю собаку, если мой папа занят.                                                                   10. Вот такие мои домашние обязанности.

Объяснение: