💡 We use 'hasn't smoked' because the meaning is zero cigarettes — not one. The simple form shows complete absence. 'Hasn't been smoking' suggests a reduction, not total absence, so it is wrong here.

💡 We use 'hasn't been drinking' because he still drinks coffee sometimes — the habit is reduced, not gone. 'Hasn't drunk' would mean zero cups, which is not true here. The continuous shows reduced frequency.

💡 The phrase 'not once, completely zero' tells us the meaning is total absence. We use the simple form 'haven't eaten' for zero occurrences. 'Haven't been eating' would suggest a reduction, not zero.

💡 She still goes sometimes, so the meaning is reduced frequency, not zero. We use 'hasn't been going' with 'much' to show this. 'Hasn't gone' would mean zero visits, which contradicts 'once a week'.

💡 'Have' is a stative verb here, and the meaning is zero alcohol. We use the simple form 'hasn't had' to show complete absence. 'Hasn't been having' is wrong because stative verbs don't normally use the continuous.

💡 She still exercises a little, so the meaning is reduced habit, not zero. 'Hasn't been exercising much' is the correct pattern. 'Hasn't exercised' would mean no exercise at all, which is wrong here.

💡 'Not once' tells us the count is zero. We use the simple form 'hasn't visited' to express zero occurrences. 'Hasn't been visiting' would suggest he has visited sometimes but less often, which contradicts 'not once'.

💡 She had chocolate last weekend, so the meaning is not zero — it's a reduction. We use 'hasn't been eating much' to show this. 'Hasn't eaten' would mean zero chocolate, which is not true.

💡 'Total absence' means zero cigarettes. We use the simple form 'hasn't touched' to show this. 'Hasn't been touching' would suggest he smokes sometimes but less, which is the opposite of what the sentence says.

💡 The meaning here is that she has never once told the full truth — zero times. We use the simple form 'hasn't told' for this. 'Hasn't been telling' would focus on a reduced habit, which doesn't fit the idea of zero honesty.

💡 He still drinks some coffee, so the meaning is reduced frequency. 'Hasn't been drinking much' is the right pattern. 'Hasn't drunk' would mean zero cups, but the sentence says he has one cup most mornings.

💡 'Not a single piece, ever' means zero. We use the simple form 'hasn't eaten' to show complete absence. 'Hasn't been eating' would suggest she sometimes eats meat but less often, which is not the meaning here.

💡 He still goes sometimes, so this is about reduced frequency, not zero visits. 'Hasn't been going much' is correct. 'Hasn't gone' would mean zero visits, but the sentence says he goes occasionally.

💡 'Completely zero' and 'not a single drink' mean total absence. We use the simple form 'hasn't had' here. 'Have' is also stative, so the continuous is doubly wrong. 'Hasn't been having' is incorrect for both reasons.

💡 'Not once' means the count is zero. We use the simple form 'haven't eaten' for zero occurrences. 'Haven't been eating' suggests he eats fast food sometimes but less often — that's a different meaning.

💡 She still eats some chocolate, so the meaning is reduced frequency. 'Haven't been eating much' is correct. 'Haven't eaten' would mean zero chocolate, but she says she still has some at weekends.

💡 'Total absence' means zero drinks. 'Have' is stative, so the continuous is wrong. We use the simple form 'hasn't had' to show complete absence. 'Hasn't been having' is wrong for two reasons: it's stative and it suggests some drinking.

💡 She still walks, so this is reduced activity, not zero. 'Hasn't been exercising much' shows this. 'Hasn't exercised' would mean no exercise at all, which contradicts 'she still walks every day'.

💡 'Not one, completely stopped' means zero cigarettes. We use the simple form 'haven't smoked' for total absence. 'Haven't been smoking' would suggest he smokes occasionally but less — that is a different meaning.

💡 She still drinks coffee — the habit is reduced, not gone. 'Haven't been drinking much' is the correct pattern. 'Haven't drunk' would mean zero cups, but she says she still has one cup a day.

💡 'Not a single visit' means zero. We use the simple form 'haven't visited' to count zero occurrences. 'Haven't been visiting' would suggest he goes sometimes but less often — that is not the meaning here.

💡 She still goes on Saturdays, so this is reduced frequency. 'Haven't been going much' is correct. 'Haven't gone' would mean zero visits this month, but she says she still goes on Saturdays.

💡 'Not once in my life' means zero times. We use the simple form 'haven't eaten' for zero occurrences. 'Haven't been eating' would mean he sometimes eats meat but less often — the opposite of what he says.

💡 She still watches some television, so the meaning is reduced habit. 'Haven't been watching much' is correct. 'Haven't watched' would mean zero television, but she says she watches about an hour a week.

💡 'Not a single drink' means zero. 'Have' is stative, so the continuous is wrong. We use the simple form 'haven't had' for total absence. 'Haven't been having' is wrong because it suggests some drinks and uses a stative verb in continuous.

💡 She still smokes occasionally, so the meaning is reduced frequency, not zero. 'Haven't been smoking much' is correct. 'Haven't smoked' would mean zero cigarettes, but she says she still has one occasionally.