The phrase "all of which speaks" is not correct in standard English; it should be "all of which speak" to agree with the plural subject.
You can use it when referring to multiple items or subjects that collectively convey a message or meaning.
Example: "The various reports were insightful, all of which speak to the need for immediate action."
Alternatives: "all of which indicate" or "all of which convey".
All of which speaks to an enduring and now urgent challenge for this mayor.
All of which speaks to a truism about shows, regardless of where they play: it takes a lot of people to make one happen.
All of which speaks to a contemporary Europe where the politics of national identity demand whole new levels of confidence when it comes to defending the national interest – as we found to our cost on both sides of the Tweed in 2015.
He brings his version of "The Rite of Spring" (apparently every choreographer has to have one), inspired by time spent in Lagos, Nigeria, and his dancers come from all over Africa -- all of which speaks to the diverse influences that have percolated into French dance over the last decade.
A contemporary west African band able to pull off this same trick is the next logical step--all of which speaks to the wonderful new reality of today's wide-open music scene.
There are, however, two other factors pertinent to Jeremy Lin, one of which speaks favorably for him and the other less so.
There are three explanations for the ECB's position, none of which speaks well for the institution and its regulatory and supervisory conduct.
The judge noted that there had been some 60 character witnesses for Iqbal, "all of which spoke wonderfully well of you".
While I'm for transparency, I don't like the California initiative because it's rife with exemptions and special cases, all of which speak of a double standard and point to the intent being less to protect public health than make life complicated or costlier for some agriculture sectors.
Dotted throughout the store is antique furniture, personally acquired by Slimane, from early-20th-century masters — including a 1935 daybed by Jean Prouvé, metal armchairs by Jules Leleu, an oak tabouret by Pierre Legrain and a pair of Lattenstuhl chaises by Marcel Breuer — all of which speak to the heritage of the company that Yves Saint Laurent founded more than half a century ago.
The musical, which is scheduled to play on Monday, Thursday and Saturday, "was fun and moving and very current, all of which spoke to us, plus it has a lovely score and wonderful characters," said Elena Holy, the festival's artistic director.
