Question

ПОСТАВЬТЕ СЛОВА В СКОБКАХ В НУЖНУЮ ГРАММАТИЧЕСКУЮ ФОРМУ!!!Срочно пожалуйста

If you stop to think about it, the history of housework is the history of everything.
Housework​(CHANGE) an amazing amount in only the last hundred
years or so. The​(INVENT) of electricity was very important, and it
led to the​(ARRIVE) of the washing machine, the vacuum cleaner, the
dishwasher, and so on. Housework​(BE) much harder without them
fifty years ago. Its not just technology that's different - these days, most husbands
​(EXPECT) by their wives to share the housework. Overall, then, we can see a great​(IMPROVE) in relation to housework, especially for
women - although the environmental cost of modern housework is high.

Answer 1

 has been changed
invention
arrival
was
are expected
improvement