Make the sentence grammatical: Besides, the usage of solar panel should become more and more important in the future.
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The first sentence is correct. The second sentence is incorrect.
The second sentence is correct.
The third sentence is incorrect.
The third sentence is correct.
The fourth sentence is incorrect.
The fifth sentence is correct.
The sixth sentence is incorrect.
The seventh sentence is incorrect.
The eighth sentence is correct.
The ninth sentence is incorrect.
The tenth sentence is correct.
The eleventh sentence is incorrect.
The twelfth sentence is incorrect.
The twelfth sentence