I wanted to buy a copy of The Youth, but there was_______ left in the bookshop. _______has just bought the last one.

Johnson bought a new car last week, and _______ doubled that of the old one.

The Facebook CEO, Mark Zuckerberg’ s donation will have a great on the nextgeneration.

The Chinese enjoy _________ fireworks when some good things happen (发生) in their families.

I think there will be _____ people and______pollution.