1．(2016·浙江高考)To return to the problem of water pollution，I’d like you to look at a study ________ (conduct)in Australia in 2012.
2．(2016·浙江高考)I have always enjoyed all the events you organized and I hope ________ (attend) many more in the coming years.
3．(2016·浙江高考)When their children lived far away from them，these old people felt ________ (cut)off from the world.
