1.

The woman had just sat down when her baby started crying.

Hardly .

2.

He betrayed my trust and he wrecked my car.

Not only .

3.

The sun had only just gone down when the temperature fell dramatically.

Scarcely .

4.

The fire fighter's bravery will never be forgotten.

Never .

5.

As soon as the teacher turned her back, the children started whispering.

No sooner .

6.

The exam began when all the papers had been given out.

Only .

7.

You rarely find two people so alike.

Rarely .

8.

Classes will not recommence until a replacement teacher has been found.

Not until .