A:What do you plan to do on Sunday morning?
B:Nothing special.
A:How about going to English corner with me?
B:Oh, I'd rather not.
A:Why not ?
B:You know, I am poor at English, especially spoken English.
A:That's why you should go there, If you don't dare to speak English owing to the fact that you are afraid of making mistakes, you simply will never learn English.