The phrase "a host of exchanges" is correct and usable in written English.
It can be used to describe a large number of exchanges or interactions, often in a context involving communication or transactions.
Example: "The conference featured a host of exchanges between industry leaders and emerging startups, fostering collaboration and innovation."
Alternatives: "a multitude of exchanges" or "a variety of exchanges."
HCI offers a host of exchange programmes with schools spread across the Asia-Pacific, including University of Tsukuba in Japan, Philippine Science High School in the Philippines and the Bugil Academy in South Korea.
But many of these same people say that such problems were less frequent before the nation's stock exchanges were thrown into a technological arms race in the middle of the last decade as a host of upstart exchanges like BATS challenged incumbents like the New York Stock Exchange.
There's one on-stage shooting, one attempted suicide, and a host of hectic exchanges.
But the president's three-day stay in Jerusalem, which included tours of the ancient fortress Masada, a private viewing of the Dead Sea scrolls and a host of laudatory exchanges between Mr. Bush and Israeli leaders, drew sharp criticism in the Arab world, where he was accused of being insensitive to Palestinian concerns.
A little-noticed clause in the 2011 spending bill signed into law last week cuts off funding for a host of scientific exchanges between the United States and China.
And there are a host of inverse exchange-traded funds that are designed to rise in value if a specific sector or index declines.
Nymex's decision mimics a host of other American exchanges that have decided to end their membership-based ownership structure by launching themselves on the stockmarket.As Japan exits the deflationary era, its government published an economic report that cautioned the Bank of Japan to be "prudent" about the pace of further interest-rate rises because of the fragility of the economic recovery.
At last year's summit in Seoul, members made a host of commitments on exchange rates, trade, financial reform and so on.
Then came the inevitable book, Before I Say Goodbye, which contained not only the columns but also a host of personal emails exchanged between Picardie and friends, for those greedy readers who wanted even more info about Ms. Picardie's death throes. .
If that sounds familiar, it's because, along with those incumbents, the company competes with a host of other P2P currency exchanges in Europe.
