Verbal Ability - Selecting Words - Discussion

Smile is followed by "on" "at" and "upon" so "on" might be the write answer.

Smile is a verb(a word defining an action). Actions can take all of the given choices (prepositions).
But here the context is such that, the subject is Fate (a bigger entity as we see it). Therefore, fate can only smile 'at' us or smile 'on' or 'upon' us (all positive sentences).

It won't smile with us (as it's bigger than us) and never smile over us (as this makes the sentence negative ).

I don't know exactly what comes there, but ON sounds better than others.

It simple that smile and On are attached words whatever you write.

I don't know about this sentence, 'on' this word match the sentence from others.

Over is wrong because you can't smile over something in this instance fate. So over is wrong and and on will be the right answers. Fate is something that is going to come or already happened so over is wrong.

"Smile on" for this sentence would be incorrect as it gives a negative effect. It means that u r trying to tease someone or making fun of someone. Here the sentence says that fate will favor those who have urge to complete their work/duty irrespective of all hurdles.

Ex:

Smile on you -- incorrect.
Smile with you. correct.

Open with smile - correct.
Open on smile - incorrect.

Smile on your face - correct.
Smile with your face - incorrect.

It simply depends upon the situation.

On is the right answer because smile is expression.

I think on is right as smile is an expression and make it is the best preposition which can be used in that situation.

Smiles on suits correctly as per sentence.