Complete the sentences with the correct forms of the verbs.

Choose the correct option.

I [were preparing|was preparing|was prepare] for an exam from 5 till 7 o'clock yesterday.

He [was driving|were driving|were drive] to work when he got stuck in traffic.

We [was walk|was walking|were walking] along the beach, enjoying the sunset.

The students [was taking|were taking|were take] notes during the lecture.