a. I studied reading sections on NetAcademy2 for 50 minutes.
In the studying, I challenged Advance mode.
It is that renewing to English from reading sentence in Japanese.
b. The usual mode was very easy. But Advance mode was difficult.
I couldn’t get full scales. I made mistakes spellings and order of words.
c. I made mistakes how to use “at” many time.
So I think I could learn about how to use “at”.
d. I didn’t understand how to use prepositions very well.
I think I had better study English again from the beginning.