Asked by rfvv
1. They drilled through several layers of rock to reach the oil.
2. They drilled through several layers of a rock to reach the oil.
3. They drilled through several layers of rocks to reach the oil.
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Which one is right? Do we have to use 'rock,' 'a rock,' or 'rocks.'
2. They drilled through several layers of a rock to reach the oil.
3. They drilled through several layers of rocks to reach the oil.
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Which one is right? Do we have to use 'rock,' 'a rock,' or 'rocks.'
Answers
Answered by
Writeacher
The first one is right. Possibly the third, but not the second.
The first is really the best.
The first is really the best.
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