John used to be such a computer buff that he spen

It was the first time that such a had to be？

Cloud computing is a phrase used to describe a variety of computing concepts that involve

I decided not to______John when he was in such a desperate position.A．vanishB．separateC．ab

When （) where he was born, John said that he was a New Yorker. A. asking B. being a

Nowadays, many people use computers to handle ordinary issues such as banking and office w

He came to know that the knowledge from books can be useful only _____it is linked with pr