Change the following statements into questions. There were interesting people at

There were interesting people at the party last night. (To the subject) What was there at the party last night?

They decided to go on a hike in spite of the rain. (Alternative) Did they or did he decide to go on a hike in spite of the rain?

Todays weather isnt so cold as it was yesterday. (Disjunctive) Todays weather isnt so cold as it was yesterday, is it?

Last year Mary went to Canada. (Special) Where did Mary go last year?  

When I entered the room there was nobody there. (General) Was there nobody there when I entered the room?