A day of running reduced the risk of heart disease and early deaths from all _____(cause). 2、This trend, which was started by the medical community(医学界) as a method of fighting heart disease, has had some unintended side .________ (effect) . 3.But for tourists like me, pandas are its top_____(attract). 4、The nursery team switches him every few __69__( day) with his sister 5、In addition to their simple beauty, what makes the adobe dwellings admirable is their ________(able) to “air condition” a house 6、for most of us the ____(change) are gradual and require a lot of effort and work, 7、I'd been at home in Hong Kong,with ____ (it) choking smog. 8、If you are time poor, you need run for only half the time to get the same benefits as other sports, so perhaps we should all give______(its) a try. 9、I help a lively three-month-old twin that had been rejected by ______ (it) mother.