a . I didn't meet my boss in the restaurant.
Did I meet my boss in the restaurant?
b. I didn't enjoy skiing.
Did I enjoy skiing?
c. His mother didn't put the keys in her pocket.
Did his mother put the keys in her pocket?
d. My friend didn't come home late.
Did my friend come home late?
e. His parents didn't learn Spanish.
Did his parents learn Spanish?
