Some questions about preposition. Please help me!!!

Hi!

Could you please, help me with the following?

The correct is:

a) On the right moment or at the right moment?;

b) bitting or biting (from the verb to bite)? ;

c) Some day or someday ?;

d) explained them or explained to them?;

e) In the end of the day or at the end of the day?;

f) In the way or on the way I saw nice trees ?;

g) uncontrollable or uncontrolable? (does this second option also exist ?);

h) "We went to explore..." or (just) "we explored..."

Thanks in advance,

Beatrice

Please don't post the same thread for the second time.

Hello, Doll!

 I'm very sorry! What happened is that as I have posted it too early, but I didn't see my question in the forum I thought that perhaps, for some reason it didn't reach you. So, I decided to post again.

 Best regards,

 Beatrice  

Stannum wrote:

Which is correct?  Anonymous wrote: In the end of the day or at the end of the day?; At the end of the day. This is an idiom and I am not sure if you can trust the construction in general. Robert

Hi:

I understand this is an idiom, but I have the same problem with when to use "at" and when to use "in".

In Spanish both of them translate as only one preposition, "en". So I never know which is the right one, because both mean the same to me.

I don't know what is the difference between "He's at the office" or "He's in the office", for instance.

Could someone explain, please?

Isabella