Which sentence is written in the interrogative mood? 1. If I could choose any country to live in, it would certainly be Canada.
2. Canada is rated one of the safest and healthiest countries in which to live.
3. Canada is a great country to live in because it is diverse with many scenic wonders.
4. If you could live in any country, which would you choose?

Aman lives on the twelfth floor of an apartment building. every morning he takes the elevator down to the lobby and leaves the building. in the evening, he gets into the elevator, and, if there is someone else in the elevator -- or if it was raining that day -- he goes back to his floor directly. otherwise, he goes to the tenth floor and walks up two flights of stairs to his apartment.