English prepostions are confusing and frustrating!

Using proper prepositions in English sentences are really confusing and frustrating.
I think it will take forever to learn them for non-native English speakers.

Can you put the correct preposition for these sentences?

#1. "You can also contact me ( ) cellphone ( at ) 800-123-4567."
a) through
b) via
c) with
d) none of above <suggest the proper one>

#2. If you had to describe the location of this place on the map below:
http://i213.photobucket.com/albums/cc4/devianx17/map.jpg
"The place is ( on ) the cross ( ) 9th avenue and Dell Street."
a) of
b) to
c) at
d) between
e) none of above <suggest the proper one>

#3. My school is a little further south ( ) Kenmore Avenue.
a) to
b) of

You are not alone! I'm an English student too and prepositions and phrasal verbs are a nightmare for me. To those who say English is easy: are you kidding right? As for your question, I would say a) ,c), a). Let's see what a native speaker tells us. Bye.

1. by cellphone

2. ... on the intersection of 9th avenue and dell street.

3. b) of

And you can't forget our wonderful post-positions :-)

Politics ASIDE Segolene Royal is quite attractive.
He lives three blocks AWAY.
I went to Germany two years AGO.
I worked the whole week THROUGH.

Or the circumpositions...
I'll have to keep an eye on you FROM now ON.

Yeah, English "positions" are fun...

<<#3. My school is a little further south ( ) Kenmore Avenue.
a) to
b) of >>

There's something "funny" about #3.

I'd say somethinog like:

- My school is further south than Kenmore Avenue.
- My school is south of Kenmore Avenue.
- My school is a little south of Kenmore Avenue.
- My school is a little further south than Kenmore Avenue.


<<To those who say English is easy: are you kidding right?>>

Aren't prepositions tough in all foreign languages.

Hmm you seem to know all the positions Skippy.

<<2. ... on the intersection of 9th avenue and dell street.>>

I'd also say "at the intersection of" here (although your arrow seems to point on top of the street itself -- perhaps a manhole cover?).

Don't you like the usage of prepositions in the sentence : "What hotel did you put up at?"?

1. You can contact me "by" cellphone (or via, but this sounds stilted)..

2. The place is "at" the crossING (or much more commonly "intersection)...

3. My school is a little south "of"...