Here, 'towards' means 'in favour of'. Hence it is correct preposition to be used.

'On' is used to show that something is in a position above something else and touching it. Here 'restaurant' is above surface of 'Mount road' and touching it.

In this sentence, preposition that appropriately fits in blank to convey intended meaning is "in". The complete sentence would be:

"His attitude in his work is very negative."

This usage of "in" indicates that negativity is associated with his work or is reflected within his work. It's a common preposition to use when describing someone's attitude or behavior in a specific context, in this case, his work.

The or options do not fit as well in context of sentence:

Option A: to would imply a different relationship between attitude and work.
Option C: about and Option D: of are less commonly used in this context.

So, correct answer is Option B: in.

'For' can be used to indicate a duration, limit or an ending. Here, 'an hour' is a duration. Hence it makes sentence meaningful.

The correct preposition to use in sentence "The money flew... window" is out of.

So, complete sentence is: "The money flew out of window."

This preposition indicates direction in which money moved, suggesting that money went from inside (possibly a room or building) to outside through window.