Question

1. a serious accident occurred along the highway.
2. the boy's voices echoed in the vacant room.
ubah ke negative

Answer 1

1.A serious accident did not occure along the highway.
2. The boy's voices did not echo in the vacant room.

Answer 2

1. A serious accident did not occur along the highway. (Simple past)

2. The boy's voice did not echo in the vacant room. (Simple past)