Perfect Tenses

They _________________ each other since last year.

• knew

• known

• have known

• has known

Sorry Mr. Brown. I ______________ my homework at home.

• have forgotten

• forgot

• forget

• didn't forget

My brother ____________ to study for his exam yet.

• has started

• hasn't started

• has start

• was started

I _____________ him several times before.

• have saw

• seen

• saw

• have seen

I know what happened there. I ___________ about it.

• haven't heard

• heard

• have heard

• hear

I am very tired. I __________ six pizzas since morning.

• delivered

• have delivered

• was delivering

• deliver

I need to take a bus because I ____________ my car

• have sold

• sell

• sold

• was sold

I am so happy because I ___________ my English exam.

• passed

• passes

• have passed

• did not pass

She is unhappy because she ___________ her keys

• losing

• lost

• have lost

• has lost

I am hungry because I_______________ anything.

• still have not eaten

• have not just eaten

• have already eaten