The phrase "are now hooked" is correct and usable in written English.
It can be used to describe someone who has become very interested or addicted to something, often in a positive context.
Example: "After binge-watching the first season, I can confidently say that I am now hooked on this new series."
Alternatives: "are now captivated" or "have become addicted."
Residential areas affected by the groundwater contamination are now hooked up to public water supplies.
They were selected to test U-verse a few months ago and are now hooked on the service.
Significantly, the emissions-monitoring systems of China's largest power plants and factories are now hooked up to a central monitoring center; a national registry listing which plants have certified sulfur-scrubbing equipment has also been created.
Nearly all of the public schools in the United States are now hooked up to the Internet, but the location of computers in the school and how often students have access to them may make all the difference.
People are now hooked on looking down their noses at anyone else whenever they can, and there are few easier targets than someone who confesses to being a smoker.
Like many cities, Moscow has an enormous network of CCTV cameras, but unlike many cities, thousands of those cameras are now hooked up to a powerful facial recognition system that can track criminals (and trash collectors) wherever they go.
We are certain that the goth-looking kids from upstate are runaway junkie crusties hanging out in Tompkins Square Park, while all the young Rican girls are now hooking at The Point.
One of the more positive responses to Chabon's brand of "trickster literature" appeared in Time magazine, whose Lev Grossman wrote that "This is literature in mid-transformation.... [T]he highbrow and the lowbrow, once kept chastely separate, are now hooking up, [and] you can almost see the future of literature coming".
But I'm not ashamed to say I'm now hooked on their infectiously cheesy pap-raps and angsty screeches.
Although he once said Downton Abbey's historical aberrations left him feeling it was just "actors standing there in hats telling lies", Mitchell is now hooked.
But that might not deter Bill Wrigley, the fourth generation of the family at the helm, who, after his unexpectedly ambitious move for Hershey, is now hooked on diversifying.For Cadbury, Adams would be its biggest-ever acquisition, adding 50% to its confectionery business.
