let and be allowed to URGENT

[Biber]

Hi everybody,
I'm new in this site so if I've written the message on a wrong part, please forgive me.

I'll be very happy if you help me on this topic;
I need a complete lesson increasing the comparison of let and be allowed to with examples. If there is somenoe among you who has it, it'll be great for me.

thanks a lot...

[Torsten]

Please take a look at this: let vs allowed

TOEIC listening, photographs: A flooded community