They discovered the cause of the fire accidentally. They discovered it ______.
A: by chance
B: chancily
C: fortunately
D: luckily
A: by chance
B: chancily
C: fortunately
D: luckily
举一反三
- They discovered the cause of the fire accidentally. They discovered it _________.
- Fortunately, when my car broke down in the country, I had my mobile with me. A: Accidentally B: Fatally C: Luckily D: By chance
- It was merely_____ chance that he discovered the mistake.
- The policeman accidentally discovered the ________ of the stolen money. A: location B: site C: spot D: position
- The cause of sleeping ______ was discovered in 1901. A: illness B: sickness