Reduced Adjective Clauses 

That's amazing. After I watched all the videos, I believe my TOEFL for structure session has improved.

Great

Thank you so much sir

Awesome

In the surveys, were taken seven months apart ... You only dropped WERE and TAKEN was not dropped, why?, for me it'd be correct to write TAKING, isn't it?

We can reduse the man that I visit weekly is my dad = the man *to visit* is my dad. By using to-infinitive.

Great