[ Grammar ]
One combination is not possible: _______ energy
A. solar
B. wind
C. oil
D. nuclear

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Irregular Verb › ViewDrink (Past participle)
A. Drenk
B. Drank
C. Drunk
Grammar › View
She speaks very good English. Everything she says is very _______.
A. clearest
B. clearer
C. clearly
D. clear