单项选择题

Selecting a mobile phone for personal use is no easy task because technology（）so rapidly.

A.is changing
B.has been changed
C.will have changed
D.will change

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单项选择题

A.teaching, writing, and lecturing
B.teaching, writing, and a lecturer
C.a teacher, a writer, and lecturing
D.teaching, lecturing, and a writer

单项选择题

A.after
B.over
C.on
D.into

单项选择题

A.Pleased to meet you ,too.
B.How do you do?
C.I've heard about you.
D.The pleasure is mine