Simple past

I ______________ (work) in a hospital for twenty years. 

• work
• workd
• worked
• workked

He ______ (win) the Nobel Prize last year. 

• winned
• wined
• won
• winning

She ___________  (go) to visit her grandmother yesterday. 

• went
• go
• goed
• goied

Columbus ____________  (discover) America in 1492. 

• discoverred
• discovered
• Discoverd
• Discovering. 

My friend _____________ (work) very hard on this presentation. 

• worked
• workd
• workied
• workked

My sisters _____________ (finish) fixing the car last week. 

• finishd
• finishied
• finished
• finishhed

The baby ____________ (smile) at me an hour ago. 

• smile
• smiled
• smileed
• smilied

I ___________ (bake) a cake for the her birthday party last Thursday but she didn't like it. 

• boke
• boki
• baked
• bakied

I _________________ study) with Daniel for the test last Wednesday. 

• study
• studyed
• studied
• studyied

Shir __________ (play) with Toffee in the morning. 

• playd
• played
• plaid
• plaied