Use the Present to make questions.
Example (You/see/Dima?)
have you seen Dima?
a) (You/visit/the Akorda/in Astana?)
b) (You/be/to Astana?)
c) (Colin/eat/the Kazakh meet?)
d) (Colin/write/to his mother?)
e) (You/ever/see/a whale/in the sea)