—You look great! Were you on vacation or ________？—You got it. I've just come back from America.

Believe it or not, no bread eaten by us is so sweet as ___________ earned by our own labour. 

____ is known to all, persistence is a kind of quality and that’s ____ it takes to do anything well.

－Who is the lady standing over there?－I am not sure, but it may be ___ from the provincial government. 

The Internet and the effect       brought about did a lot of good to our daily life and work. That is to say, the Internet has made a great difference in many aspects.