Climbing hills _ of great help to health.A.isB.areC.wereD.be

Climbing hills _ of great help to health.A.isB.areC.wereD.be Climbing hills is of great help to our health.为什么用of? Kitty is climbing _____ the hills But of all the things people do,climbing hill is the most popular.同一句转换.=But climbing hills is more popular than ___ ___things people do. he,does,hills,like,climbing（连词成句) we were all t_ after climbing the hills climbing hills ____of great help to our health A.was B.were C.is D.are 选哪一个?of做什么成分? ---- is good evercise.climbing hills is climbing the hill is 选择哪一个为什么? It is fun _(climb) hills climbing hills ___of great help to out healtha.was b were c is d are Fall is a good time for climbing hills 同义句转换 急用!谁会啊! 急用! Climbing hills are/is good for your health.这句用are还是is,或者是别的 “Hard hills of rock became rivers of climbing climbing 什么是the black hills of south dakota 英语翻译the Temple of HeavenThe Ming Tombsthe Fragrant Hills it's a good time to climb hills 可以等于it's a good time for climbing hills _It's a fine day today._Yes.It's a good time__________a picnic.A.for having B.to have