Civilizations could come into being in a short time.
举一反三
- Civilizations could come into being in a short time. A: 正确 B: 错误
- It was ___ that she could have become so ___ in such a short time.
- How time flies! Three years really a short time.
- Jane could have come to the party, but she ___ not find the exact time.
- Jane have come to the party, but she not find the exact time. A: could; could B: might; could C: should; could D: should; would