The hard-working farmers and their happy life_____ we saw in the countryside made a wonderful impression on us.[ ]

依次填入下面一段文字横线处的语句，衔接最恰当的一组是（ ）家乡有一条河，曲曲弯弯，河中架一弯石桥弓形的小桥横跨两岸。_____________，___________。________________，______________。______________，_____________。①弯弯小桥，不时荡过轻吟低唱②不时露出舒心的笑容③那是家乡人为了追求多棱的希望④每天，不管是鸡鸣晓月，日丽中天⑤还是月华泻地，小桥都印下串串脚迹，洒落串串汗珠⑥兑现美好的遐想

This Russian program is difficult ______ for Chinese students.

The teacher, along with the students, playing this game.

Why does she always ask you for help? —There is no one else ________, is there?