I'm Linh and now I (1) _____________ at a high school in the United States

i'm Linh and now I (1) _____________ at a high school in the United States. My biggest challenge in the United States is the language (2) _____________. I (3)_____________ English for five years but I still face difficulties in communication. For all the time, I feel nervous to understand what other people were saying and why they were laughing. (4)_____________I go to see an American movie, I still can't understand the actors. Maybe because spoken English has a lot of idioms and communication (5)_____________ may happen due to cultural differences.