1, → I suggest Peter should look for another job.

2, → Hardly had the teacher returned home from work when he started to write the lesson plan.

3, → Tom apologized to Jane for breaking the valuable vase.

5, → No other is as bright as Nam's student in our class.

6, →  It was not until he came into the room that I recognized him.

7, →  I must send Jane and Alice my thanks for their presents.

8, →  He came down with a cold, so he stayed home.

9, → It was such good news that she smiled happily.

Bổ sung (4): The police wouldn't let us get nearer.

=>
1. I suggest Peter should look for another job.
2. Hardly had the teacher returned home from work when he started to write the lesson plan.
3. Tom apologized to Tina for breaking the valuable vase.
4. The police wouldn't allow us to get nearer./ The police wouldn't let us get nearer.
5. No other student in our school is as bright as Nam.
6. It was only when he came into the room that I recognized him.
7. I must send Jane and Alice many thanks for their presents.
8. He came down with a cold so he stayed home.
9. It was such good news that she smiled happily.