Selecting a mobile phone for personal use is no easy task because technology ____ so rapidly.
I _______ have met him a long time ago. Both his name and face are very familiar.
“I called you yesterday. A woman answered, but I didn’t recognize her voice.” “Oh, it _____ my aunt Jean.”
Are you still here? You ______ home hours ago.
As she’s not here, I suppose she _____ home.
You _____ him the news; he knew it already.