They discovered the cause of the fire accidentally. They discovered it _________.
举一反三
- They discovered the cause of the fire accidentally. They discovered it ______. A: by chance B: chancily C: fortunately D: luckily
- The cause of sleeping ______ was discovered in 1901. A: illness B: sickness
- The policeman accidentally discovered the ________ of the stolen money. A: location B: site C: spot D: position
- The three pits containing the terracotta army of Emperor Qinshihuang were all accidentally discovered by some farmers.
- It ______ long ago that the earth is round. A: was discovered B: is discovered C: discovers D: discovered