Present/Past (Perfect) tenses

Computers ... more and more efficient.

• are becoming

• become

• is beciming

Paul ... to Tina when I saw him.

• is talking

• was talking

• had been talking

Richard ... very hard at the moment.

• is working

• works

• has worked

Sam ... to school every day.

• was walking

• walks

• is walking

We ... to Austria last weekend

• have gone

• went

• go

TINA ... while Bob was watering the plants

• cooked

• was cooking

• has been cooking

I ... Italian for 3 years

• learn

• am learning

• has been learning

Jason ... Amanda since she was 7 years old.

• has known

• knows

• knew

They ... for three hours so they need a break.

• have been driving

• had been driving

• are driving

The River Amazon ... into the Atlantic Ocean.

• is flowing

• flows

• flew