1、Linda takes a walk along the river for thirty minutes everyday.琳达每天沿着小河散步半个小时.2、Bob and Jenny are sitting by the lake and talking happily.鲍勃和杰尼正坐在湖边聊的很开心.
It often takes thirty minites for Linda to walk along the river every day. Bob and Jenny are sitting by the lake hppily,talking happily.(are sitting and talking happpily也可以)