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The correct structure for a third conditional sentence (which talks about hypothetical or unreal situations in the past) is "If + past perfect, + would have + past participle." Therefore, "had known about the" is the correct choice as it follows this pattern, indicating that if she had known earlier, she would have been able to help.
Which is an insect growth regular?
During cold winter water absorption by plant roots is at:
Recently an Indian Forest Service (IFS) Officer, ____________, resident of Dehradun, became the first woman officer to take the charge of fiel...
The mid season correction is a practice of
Which of the following statement regarding PMMSY is not true?
Which one is cole-crop:
Which is the scientific method that measures soil moisture by sending an electromagnetic pulse along a probe inserted into the soil?
Field planting season for poplar tree is
Parts per million (ppm) is equal to
The isolation distance for production of loose smut free seeds in wheat is: