Complete as sentenças usando o present perfect (suj + have/has + verbo no participle) ou o simple past (suj + verbo no passado):

1. I ___________ (to be) in US once in my life.

( ) have been

( ) has been

( ) was

2. He ______ (to see) the teacher yesterday.

( ) saw

( ) have seen

( ) has seen

3.When I was a child, I __________ (to play) a lot in the streets with other kids.

( ) has played

( ) played

( ) have played

4. I don’t know when, but we ___________ (already to talk) to each other. 

( ) have already talked

( ) has already talked

( ) already talked