Present perfect questions

Which sentence/question is correct?

• Alexander Fleming discovered penicillin in 1928.

• Alexander Fleming just discovered penicillin.

Which sentence/question is correct?

• Did he ride his bike two hours ago?

• Did he ride his bike yet?

Which sentence/question is correct?

• We have cleaned the car last Thursday.

• We have just cleaned the car.

Which sentence/question is correct?

• My grandmother has already got up.

• My grandmother has got up an hour ago.

Which sentence is correct?

• I have not visited my uncle two weeks ago.

• I have not visited my uncle yet.

Which question is correct?

• Have you ever seen a rattlesnake?

• Have you seen a rattlesnake yesterday?

Which sentence is correct?

• They have never written a text message.

• They have not written a text message in the last lesson.

My father _________his video camera yesterday.

• forgets

• forgot

• forgotten

Steven _______across the Altantic.

• has never flew

• has never flown

• has never fly

__________a snake?

• Have you ever touch

• Have you ever touched