问题
选择题
Computers_______ many things and we_______ these modern machines.
A．are used to doing; are used to use
B．are used to do; are used to using
C．used to do; are used to using
D．are used to do; used to use
答案
答案：B
题目分析：句意：电脑用来做许多的事情，我们习惯于使用这些现代的机器。be used to do sth,被用来做……，be used to doing sth 习惯于做……，used to do sth,过去常常做某事。根据句意，故选B。