Английский язык, 5 класс тер-минасова узунова, 2 часть стр 29 упр 8, помогите пожалуйста решить

Объяснение:

1)The USA is smaller than Chine and Russia

2)The US capital was named Washington in 1791

3)The tallest trees in the world can be found in the forests of California

4)Niagara Fall is the second highest waterfall in the world

5)Some people could fall down Niagara Falls in a barrel