Question 10. There _______ many recent breakthroughs in technology. Now consumers can purchase the
latest high tech toys. This was not possible even a few years ago.
A. are B. had been C. have been D. has been
Question 10. There _______ many recent breakthroughs in technology. Now consumers can purchase the
latest high tech toys. This was not possible even a few years ago.
A. are B. had been C. have been D. has been
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