Task iii use of englishthe active couch potatoour lifestyle today means that we spend a lot of time (21) in front of a computer or tv, at a desk, or even macar. in fact, chances are, you're sitting down right now.as we are always being warned (22) how unhealthy this kind of lifestyle is, some people try (23) asmuch exercise as they can in their free time. usually, these people are pretty certain that this means that their lifestylehas become healthy. (24) for them, the damage has already been done, for these 'active couch potatoes', acouple of hours at the gym is not enough to balance out many hours (25)_ _sitting in a chair,biologically, human beings are not designed to spend long (26) of time sitting down. for good health, we(27) be involved in light exercise and activity throughout the day. some experts suggest (28)_ 10000steps (counted by a smartphone app) during the course of a day, while others advise getting up for 2-3 minutes(29) half an hour.another recommendation is to drink plenty of water - not just because it's good for you anyway, but because it willmake you get up to go to the bathroom more (21. a. sitb. to sitc. by sittingd. sitting22.a withb. forc. aboutd. over23.a. and fitted in b. to fit inc. to have fitted ind. having fitted in ,24.a. unfortunately b. what is morec. unlikelyd. helpfully25.a. spendingb. to spendc. spentd. spend26.a. stagesb. hoursc. periodsd. quantities27.a. shouldb.willc. mayd. could28.a. to walkb. walkingc. we walkedd. walk29.a. eachb. inc. tod. every30. a. againb. usuallyc. oftend. time