Shouldn't it be experience, not experiences?

I haven never received formal or well-structured training in writing in English.

I had a hard time to learn how to use determiners in a correct way. For example, should ones use "the" in front of an uncountable noun or not?

所有跟帖： 

• 我的语法是当初考六级及toefl时突击的，也差不多都忘光了。。：） -beautifulwind- ♀ (411 bytes) () 09/13/2015 postreply 20:13:12