—Is there anything I can do for you?—There seems to have been a technical problem—______，that’s what they told me．

He was __ twenty when he was gone.

 He knows it's almost impossible to finish the ,task he but he wants to have a try ______.

____ most children nowadays are the only chidren, they tend to be more self-centered．

In it were photos of all the actors of our show, _____ signed by each performer.