Question

1. Mude as frases do simple present para o simple past.

a. peter finally begins to understood me
b. they want to buy some fruit
c. i prefer to pai in cash
d. sheila eats her food very quickly
e. some people go to england to study english
f. they have to develop their creativity
g. sandra studies math with a private teacher
h. he plays the piano at that cafe
i. those young girls wear mini-skirt

Answer 1

Hey there!

a. Peter finally began to understand me (to understood não seria correto e eu diria: ...began understanding me...) 
b. They wanted to buy some fruit 
c. I preferred to pay in cash
d. Sheila ate her food very quickly
e. Some people went to England to study English
f. They had to develop their creativity 
g. Sandra studied math with a private teacher
h. He played the piano at that cafe
i. Those young girls wore mini-skirt 

Espero ter ajudado! :D