Change the following statements into questions.
There were interesting people at the party last night. (To the subject)
They decided to go on a hike in spite of the rain. (Alternative)
Today's weather isn't so cold as it was yesterday. (Disjunctive)
Last year Mary went to Canada. (Special)
When I entered the room there was nobody there. (General)

 Who was there at the party last night? или What people were there at the party last night? Did they decide to go on a hike or to ride their bikes in spite of the rain? Today's weather isn't so cold as it was yesterday, is it? When did Mary go to Canada? Was there anybody in the room when you entered there?