1. The officer wasn't very friendly. She spoke to him yesterday.
=> The officer
2. People say that the bridge was destroyed in the war.
=> The bridge
3. Peter doesn't get goodmarks because he doesn't study hardy.
=> If
4. Tom didn't take the raincoat with him, and he got wet.
=> If Tom
5. They were busy, so they couldn't help us decorate the room.
=> If they
6. I took the job because I didn't know how difficult it was.
=> If
1. The officer wasn't very friendly. She spoke to him yesterday.
=> The officer who she spoke to yesterday wasn't very friendly.
2. People say that the bridge was destroyed in the war.
=> The bridge is said to have been destroyed in the war
3. Peter doesn't get goodmarks because he doesn't study hardy.
=> If Peter studies hard, he will/ can get goodmarks.
4. Tom didn't take the raincoat with him, and he got wet.
=> If Tom had taken the raincoat with him, he wouldn't have got wet.
5. They were busy, so they couldn't help us decorate the room.
=> If they hadn't been busy, they could have helped us decorate the room.
6. I took the job because I didn't know how difficult it was.
=> If I had known how difficult it was I wouldn't have taken the job.