Explanation

Desirous is a noun here.

We use of with desirous.

Of is a preposition here.

Desirous means خواہاں، خواہش مند

Are you really desirous of visiting Pakistan?

Explanation

Usage of IN and INTO

In = inside to inside.

My mother is in the house.

Into = motion inward

A girl jumped into the river means لڑکی نے دریا میں چھلانگ لگالی

Explanation

I got ON the bus and went to the Hotel.

کیونکہ بس پر بیٹھ کر گیا اس لیے ان لگا

Explanation

conducive is generally followed by to.

To is a preposition here.

conducive to مددگار یا سازگار

The climate is not conducive to good health.

Explanation

RECONCILE with someone means کسی سے صلح یا میلاپ کرنا

RECONCILE to something means خود کو ڈھالنا

RECONCILE to means to adjust.

Students should be reconciled to the way things are changing. 

Explanation

RECONCILE with someone means کسی سے صلح یا میلاپ کرنا

RECONCILE to something means خود کو ڈھالنا

RECONCILE to means to adjust.

Students should be reconciled to the way things are changing. 

Explanation

He threw the latter into the fire .

Explanation

He walked upto the end of the street yesterday.

Here upto shows distance.

We use till for time not distance.

Explanation

Something can be taken to one`s heart.

وہ پریشان نظر آتا ہے ، مجھے لگتا ہے کہ اس نے تنقید کو دل میں لیا۔

Don't take my words to your heart

He took your words to his heart.

Explanation

In general, we use: at for a POINT.

in for an ENCLOSED SPACE.