Choose the correct answer.

1. He tried to deny __________ the money, but no one believed him.
A) take  B) to take  C) taking

2. I hope __________ a pilot when I grow up.
A) become  B) to become  C) becoming

3. Mr Foster has decided __________ , so we're going to have a party.
A) retire  B) to retire  C) retiring

4. Do you remember __________ to Germany when you were two years old?
A) go  B) to go  C) going

5. You can make the dog __________ to you by shouting 'come'.
A) come  B) to come  C) coming

6. There's no answer at the office. Let’s try __________ Roger's mobile.
A) call  B) to call  C) calling