问题
选择题
The old man used _____ in front of his house and he has got used to _______ like that.
A．to sit; doing
B．to sitting; do
C．to sit; do
D．to sitting; doing
答案
答案：A
考查固定结构。Used to do sth.过去常常；be/get used to doing sth.习惯于做某事。句意：这个老人过去常常坐着房子前面。他已经习惯了那样做。所以选A。