A survey of mobile phone use was conducted ----------------- the National

1. A) to B) of C) by D) from
Telecommunications Institute. They discovered that only five percent
of people have downloaded a mobile phone game. The study found
that many were confused about whether their handset could play
games or how to download them. 2,500 phone users were -----------------

2. A) interviewed B) interview C) interviews D) interviewing
across the U.S. and several European countries.