Choose the correct item.
1. Computers ..... more and more efficient.
A are becoming
B become
C is becoming
D became
2. Paul ..... to Tina when I saw him.
A is talking
B was talking
C talks
D were talking
3. Sam ..... to school every day.
A was walking
B is walking
C walk
D walks
4. We ..... to Austria last winter. A have gone
B went
C go
D were going
5. The bank ...... by the time I got there.
A closes
B closed
C had closed
D have closed
6. Tina ..... while Bob was watering the plants.
A cooked
B was cooking
C has been cooking
D has cooked​