He once remarked that "All happy families ________ one another, but each unhappy family is unhappy in its own way".

Mr. Smith doesn’t like all that empty talk between Susan and Joan, which he thinks will definitely get them ________.

When it comes to “empty-nest syndrome(综合症)”, parents are advised to _______regular contact with children through phone calls, emails, texts or video chats. 

(2014·吉林模拟)—Have you finished the report?—Oh，sorry.It was so noisy in the office that I couldn’t________down to write anything.

It is clear that a computer works ______ faster than an abacus .