1, they serve dinner at eight
=> Dinner is served at eight
2, when did someone invent the radio?
=> When was the radio invented ?
3, people leave a lot of things in the subway everyday
=> A lot of things are left in the subway everyday
4, they don't sell pens at the bookstore
=> Pens aren't sold at the bookstore
5, Columbus discovered America in 1492
=> America was discovered in 1492 by Columbus
6, Thomas Edison invented the electric bulb
=> The electric bulb was invented by Thomas Edison
7, artists don't create great paintings overnight
=> Great paintings are created by artists overnight
8, they speak Portuguese in Brazil
=> Portuguese is spoken in Brazil
9, someone robbed the bank
=> The bank was robbed
10, someone discovered gold in California in 1848
=> Gold was discovered in California in 1848
11, someone has asked me to join the English conversation club
=> I have been asked to join the English conversation club
12, people did't pollute the air years ago
=> The air wasn't polluted years ago
mong anh chị cho em hay nhất ạ, em cảm ơn very muchhhhhhhh
