Could I speak to _____is in charge of International Sales please?

Mary wrote an article on __the team had failed to win the game.

—I wonder＿＿＿ like to be an astronaut(宇航员).—I don’t know, but I imagine it’s exciting.

I am not sure _________ from his home to school.

Scientists have long wondered　　　parts of the brain are involved in musical tasks.