Mix tense

I ............Louisiana state University.

• am attending

• attend

• was attending

• attended

He has been selling motorcycles.................

• ten years ago

• since ten years

• for ten years ago

• for ten years

Columbus............America more then 400 years ago.

• discovered

• has discovered

• had discovered

• he has gone

He fell down when he ............towards the church.

• run

• runs

• was running

• had run

We ............there when our father died.

• still lived

• lived still

• was still living

• were still living

I............in the room now.

• am being

• was being

• have been being

• am

I.............to New York three times this year.

• have been

• had been

• was

• were

John ............a book when I saw him.

• is reading

• read

• reading

• was reading

Before you asked, the letter...............

• was written

• had been written

• had written

• has been written

Oil ............if you pour it on water.

• floated

• floats

• will be floated

• float