Such a moment seldom comes

=> Seldom.....

They went to their aunt's house after school

=> Only after

I only went to the opera once in the whole time I was in Italy

=> Only once

She hadn't written a single word since the exam had started

=> Not a single word

They didn't actually break the rules of the game at any time

=> At no time

It's not common for there to be so much rain in March

=> Seldom

You won't be allowed in until your identity has been checked

=> Only

The children themselves are not any way to blame for the disaster

=> In no way

She didn't realize what would happen to her next

=> Little

I never for one moment thought the consequences would be so far-reaching

=> Never

The embassy staff little realized that Ted was secret agent

=> Little

Keith certeainly can't be held responsible for the accident

=> In no way

It isn't worth considering his suggestion for one moment

=> Not for one moment

She didn't shed a tear when thy story ended tragedy

=> Not a tear

The manager not once offered us an apology

=> Not once

She made no sound as she crept upstair

=> Not a sound

He only thought about having a holiday abroad after she retired

=> Not until

I only realized how dangerous the situation had been when I got home

=> Only when