Which is the most difficult in English learning?

Number of Voters
26
First Vote
Monday, 09 October 2006 13:01
Last Vote
Thursday, 19 July 2012 00:58

Which is the most difficult in English learning?

Hits Percent Graph
pronunciation
8 30.8%
vocabulary
6 23.1%
grammar
4 15.4%
listening
3 11.5%