Answer:
World war 2 was the historical event during the unbreakable code era
It means that you had lots of fun, joyful time, happy
Answer:
<h3>A) </h3>
1) tidied
My sister <em><u>tidied</u></em><em><u> </u></em><u> </u> her room yesterday
2) didn't tidy
My sister <em><u>didn</u></em><em><u>'t</u></em><em><u> </u></em><em><u>tidy</u></em><em><u> </u></em> her room yesterday
3) Did, tidy
<em><u>Did</u></em><em><u> </u></em> your sister <em><u>tidy</u></em><em><u> </u></em> her room yesterday?
<h3>B)</h3>
1) lived
We lived in London last summer.
2) didn't live
We didn't live in London last summer
3) Did, live
Did you live in London last summer?