Student or Learner
I'd like to aks you about the following sentences:
1) I always think that people talk _____ my back about me and my boyfriend. ---> which preposition suits best?
a) behind (I guess that this one)
2) I like riding a bik, but two weeks ago I leaned it against the fence and went _____ the pub and someone stole it!
What's the difference would it make if I used a), b) or c) ?
3) When we go skiing, my father puts the skis _____ the car
a) on top of
b) on the top of
Again, what's the difference between these 3 answers? Btw. can I ask "what's the difference between those/these 3 answers" or is between restricted to 2 and no more?