(1) Fui 2) Fue 3)fueron 4) iban 5) iba 6)iba 7)irías 8)vamos
Sentences are grammatically correct and make sense.
In the first one means:
We have as much pens as they do.
Second means:
They are as tall as us.
"tan" is the equivalent in English for "as much". The concordance is well done in both cases.
Answer: The sentence in the correct present tense would be Pedro esta hablando mucho.
Hope this helps
A but its not quite right but it is the closest
