All at once' means---
A
Slowly
B
Gradually
C
Suddenly
D
Rarely
Correct Answer: Suddenly
All at once' means---একেবারে বা হঠাৎSlowly means----ধীরে ধীরেGradually means---- ক্রমশSuddenly means----হঠাৎRarely means ---- কদাচিৎ