The phrase "keeping silent about" is correct and usable in written English.
It is usually used to refer to not discussing or revealing something; for example, "She kept silent about the incident, not wanting to make anyone feel uncomfortable."
No wonder others are keeping silent about Assange's antics….
Still, opposition leaders accused the Obama administration and Britain of keeping silent about the abuses.
She sent an e-mail about it to ABC News: No wonder others are keeping silent about Assange's antics….
The internet giant paid Mr. Rubin $90 million and praised him, while keeping silent about a misconduct claim.
Don Victor lets spill his past erotic transgressions, while keeping silent about his continuing predations on his grandchildren's governess.
His publisher, Pan MacMillan, is keeping silent about the book, Kind of Blue, knowing it is good.
I'm thinking about keeping silent for one day.
"The Chinese model is that economic development is the primary issue; don't ask about human rights issues, don't ask about your freedom, keeping silent on people's rights so that a few politicians get the economic benefits," said the 47-year-old economist.
If anybody had an issue with another team member, or any kind of miscommunication, we made sure to bring it up rather than keeping silent or complaining to somebody else about the problem.
While we were busy keeping silent, changing diapers, paying the mortgage, our friend was busy thinking about being a writer.
This fivesome bounces along for a while, the widow and the fat woman keeping silent, the mother and grandmother talking to the child and each other about the food.
