She had been trying to learn how to use a computer _____as long as she lived here_______ she gave up because of her illness.

She had been trying to learn how to use a computer _____as long as she lived here_______ she gave up because of her illness.

• for/when (Correct)
• till/before (Incorrect)
• before/for (Incorrect)
• So/until (Incorrect)
• since/once (Incorrect)