It means, for example if I say, "I go to the park every now and then", then it isn't a common event, but happens often enough not to be classified as a rarity.
Answer: a helpful companion or partner, especially one's husband or wife.
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Explanation:
After killing her husband, she put on an act. She started crying and sulking when the police were at the house examining the body. Her actions made the investigators assume that she did not do it.
The answer is C. Do, The flowers do need water