৩৪০৩
As water passes --- various rocks, calcium fluoride gets in the water.
উত্তর
none of these
৩৪০৪
But for your timely help , I would failed and I am forever indebted to you .
উত্তর
have
৩৪০৫
Choose the appropriate preposition to fill in the gap in the following sentence: He fell ---- his bike.
উত্তর
off
৩৪০৯
Happiness consists --- self -con contenment . Which one of the following is the appropriate preposition for the gap.
উত্তর
in