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​

Computers ..... more and more efficient.

Correct answer: A are becoming

Explanation: The sentence is in the present tense and refers to a process that is currently happening, so the present continuous form "are becoming" is correct.

Paul ..... to Tina when I saw him.

Correct answer: B was talking

Explanation: The sentence describes an action that was ongoing in the past when another action occurred ("I saw him"), so the past continuous "was talking" is appropriate.

Sam ..... to school every day.

Correct answer: D walks

Explanation: The sentence indicates a regular action, so the present simple "walks" is correct.

We ..... to Austria last winter.

Correct answer: B went

Explanation: The sentence refers to a completed action in the past, so the past simple "went" is the right choice.

The bank ...... by the time I got there.

Correct answer: C had closed

Explanation: The sentence describes an action (the bank closing) that was completed before another action in the past ("I got there"), so the past perfect "had closed" is appropriate.

Tina ..... while Bob was watering the plants.

Correct answer: B was cooking

Explanation: The sentence describes two simultaneous actions in the past, one of which was ongoing ("Bob was watering the plants"). For consistency, the past continuous "was cooking" is correct.