Question

He is quite certain..............winning the scholarship
(1) at
(2) of
(3) about
(4) over
Preposition

Answer 1

Answer:

$<i>$He is quiet certain at winning the scholarship ..

Answer 2

Answer:

He is quite certain..............winning the scholarship

In this sentence we will use prepositions i.e (1) at ; As this preposition is appropriate for this sentence

So by using it we will get sentence

He is quite certain..........at....winning the scholarship .