Anyone has English Debate group? Could I join?

What is the difference between "Within, for, due, and during" Sometimes I am confused to use those words appropriately..

How do you enrich your Vocabularies? I get trouble when I am speaking due to limited Vocabularies and sometimes I have no idea what I should speak

How to use the word "against" correctly? I often find this word but I don't know how to use it correctly..please help me my friends..

How to teach Speaking for Pupils? Pupils are different from Students in junior or senior high schools, they need more attention, and English is something new for them, so how the best way to teach Speaking lesson for them?

How to be confident to speak English? I often face this condition, actually I can speak but I am fear, that makes me out of control when I try to come out the words I want to speak

What should we prepare for English Debate? I am supposed to join English debate, but I am not confident enough, what should I prepare? And how to develop our confidence? I really expect to do my best

How to speak without thinking? I sometimes think the words in my native language then translate it into English in my mind before I speak English? How to overcome this problem?