Переделайте предложения утвердительные в отрицательные:
She understands the rule.
He usually has breakfast at 8 o'clock.
The lecture starts at 10.15.
The flowers look fresh.
She usually walks in the evening.
She remembers them well.
Ann misses you badly.
They feel very cold.

She doesn't understand the rule.He usually doesn't have breakfast at 8 o'clock.The lecture doesn't start at 10.15.The flowers don't look fresh.She usually doesn't walk in the evening.She doesn't remember them well.Ann doesn't miss you badly.They don't  feel very cold.