1.america was discovered by christopher columbus a)1292 b)1492 c)1692 2.when the usa was born there in it a)13 b)35 c)50 3.in 1812 americans had a war a)france b)great britain c)russia 4.this tall house has many flats but no stairs. it' a)a skyscraper b)a tepee c) a puebla