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Complete the teenager's dramatic plea to their parents by choosing the best word for each gap.
"Mom, _________________________ I please go to the rock concert tonight? I promise I will finish all my homework first! It is so unfair—I know my older sister _________________________ stay out until midnight when she was my age!"
can
We use "can" to ask for permission in the present or future. "Do I please go" and "Am I please go" are grammatically incorrect.
could
We use "could" to talk about permission that was granted in the past. Because the teenager says "when she was my age," we know this refers to a past situation.