Present Perfect vs. Simple Past

Yesterday, many people ______________(see) the soccer game.

• have seen

• has seen

• saw

• seen

He _______________(fails) three exams already in this semester.

• has failed

• have failed

• failed

• fail

Last century, there ________________(be) many advances in communications technology.

• have been

• has been

• was

• were

Since she entered the TEC, she ________________( meet) many new people. 

• have met

• has met

• meeted

• met

My mother-in-law ______________(leave) one month ago. 

• has left

• have leaved

• leaved

• left

Last week, I _________________(teach) a lot of vocabulary.

• have taught

• have tought

• taught

• tought

In the past, there _________________(be) a lot of violence in Chiapas.

• was

• were

• has been

• have been

At Christmas, she __________________(go) skiing. 

• has gone

• have gone

• went

• goed

So far, he ___________________( negative-buy) a new car.

• don´t have bought

• hasn´t bought

• haven´t bought

• hadn´t bought

When I was a child, I ________________(ride) my bike every day.

• rode

• have ridden

• has ridden

• have rode