simple-simpler- the simplest
expensive- more expensive- the most expensive
good - better- the best
many - more- the most
brave -braver-the bravest
big- bigger-the biggest
dangerous - more dangerous- the most dangerous
little- less- the least
pretty-prettier-the prettiest
interesting- more interesting- the most interesting
bad- worse- the worst
important- more important-the most important
hard- harder- the hardest
high- higher- the highest
white- whiter- the whitest
Yes I have или же No I have not☺
Have you bought some souvenirs yet?
Правильнее было бы
Have you bought any souvenirs yet?
2 He can go to the Washington Zoo.
3 He should go to the Museum of American History
4 Joe can go to the Washington minument
5 He can go to the White house