fireflysaigon  +  803110 Thu, 02 Jul 09 11:52 AM 4. Is swimming under water very difficult? - No, it's just a matter __ able to control your breathing. A. to be B. of being C. that you are D. if you had "B. of being" is correct. However, how can I explain that "C. that you are" is not correct? Many thanks. fireflysaigon Joined on Fri, Jun 19 2009 New Member 51

	Cool Breeze  +  803153 Thu, 02 Jul 09 12:34 PM I don't think there any other explanation than the fact that a matter of is a fixed phrase, even without able: It's a matter of time. CB Cool Breeze Joined on Fri, Apr 7 2006 Senior Member 3,979 "I hope you'll all live to be 150 years old - and the last voice you hear is mine!" Frank Sinatra on stage in Oslo, Norway, 28 September 1991