—Did you know ______ just now?—Their plane didn't take off on time because of the thick fog.
--- Linda, I don’t have that kind of books.--- You can _________ some from the library.
--- English is _________ so difficult to me. I can’t learn it well.--- Don’t give up(放弃).
--- What’s your favourite subject, Mike? --- _________. It’s interesting.
There _________ always a lot of snow in this place every winter.
--- What is your father like?--- He _________.