问题
选择题
The Greens used to live in London and now they _________ in Beijing.
A．used to live
B．are used to live
C．are used to living
D．are used for living
答案
答案：C
be used to sth习惯于某事;used to do sth过去常常做某事. sth be used to do sth某物被用来做某事。句意：格林一家过去住在伦敦，现在他们习惯了住在北京。结合语境可知选Ｃ。