She paid the driver and.
问题描述：
She paid the driver and.
She paid the driver and,using her hands to feel the location of the seats,walked down the aisle and found the seat he'd told her was empty.Then she settled in,placed her briefcase on her lap and rested her cane against her leg.
答
using her hands to feel the location of the seats
是进行时的状语插入语,把它抠出来,实际上句子就相当是
She paid the driver and walked down the aisle and found the seat he'd told her was empty.
她付了钱给司机并向过道里走去,然后找到了他跟她说的没人坐的那个座位.
把那个插入语加进来：
她付了钱给司机并向过道里走去,并同时用手去摸索座位的位置,然后找到了他跟她说的没人坐那个的座位.
这种用法很常见,因为using her hands to feel the location of the seats
的存在与否不影响原句的完整,但补充了原句的意思,使句子描述更加详细~成为插入语.
而那个and不是连接paid和using的,而是连接paid&walked的~
不要从单纯的位子上来看它的作用,要分解句子的成分~