Somebody's knocking at the door. Quick, go and open it.

However, I was so convinced it was a great book that I started knocking on doors.

Sometimes working at home can take a toll on your health simply because you’re no longer climbing those stairs to the office or walking to the train every day.

Strike it from inside,please.

He is inclined to chime in when others speak.

We knocked on every door we could find and checked off every name on our list.

I've been knocking away for ages, but nobody has answered the door.

The clock struck three times.

He knocked and knocked until finally his wife opened the door.

Because the university had time to learn a lot for your own good, in China now, education is a stepping stone job.

Knock before you enter.

As I type this, I am sitting in a coffee shop enjoying some organic coffee and a home made pastry.

I am right here writing a diary, working on the seventeenth piece of work of the day，before the clock hitting 12.

It sounds like somebody's knocking at the door.

His writings can stand close scrutiny.

Even later, the clock in the parlour chimes twelve heartbeats.

So when her husband knocks on the door, she answers it, naked.

You present this proposal at the meeting and I'll back you up from the sidelines.

When opportunity comes knocking, it may not come in the form or field you expect.

All fifteen boys pick up their textbooks and thump their diminutive desks as they yell out each letter in unison.