1) Ireland is an island, Great Britain is also an island.
1) Ireland is an island, Great Britain is an island as well
2) Late autumn is rainy, early spring is also rainy
3) A lot of tourists come to England, some of them also visit Scotland and Wales
4) Great Britain has a lot of lakes, it also has rivers
5) My dad reads newspapers, he also reads magazines
6) Both friends could sing, they also could dance well
7) I'm going to visit the UK someday, I'd also like to go to the USA
C also написал, а "as well" просто ставится в конце предложения - вместо "too". Вот и вся хитрость