This flashcard teaches that the verb "was" is the correct one to complete the sentence "Gunpowder … a mixture of potassium nitrate, charcoal and sulfur."
Este flashcard enseña que el verbo "was" es el correcto para completar la oración "Gunpowder … a mixture of potassium nitrate, charcoal and sulfur."
| Question | Gunpowder … a mixture of potassium nitrate, charcoal and sulfur. |
|---|---|
| Title | 951 |
| QType (0=kprim,1=mc,2=sc) | 2 |
| Q_1 | had |
| Q_2 | was |
| Q_3 | had been |
| Answers | 0 1 0 |
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