30. Many of the creatures in the movie “Avatar” are not real, but much of __________ happens is attractive.
It was 80 years before Christopher Columbus crossed the Atlantic Zheng He sailed to East Africa
Before you quit your job, how your family would feel about your decision.
All the photographs in this book,stated otherwise, date from the 1950s.
—Can I call you back at two o’clock this afternoon? —I’m sorry, but by then I______ to Beijing. How about five?
I______ thank you too much for all your help to my son while we were away from home.