问题
选择题
As is known, mobile phones make it possible for people to ______ each other conveniently.
A．keep in touch with
B．get in touch
C．lose touch
D．be concerned
答案
A
本题的含义为众所周知，手机使人们彼此之间很方便保持联系，keep in touch with表示与某人保持联系的含义，故本题选A。