1. Я конечно не знаю нужно ли в первом предложение менять что-то, но там должно быть так : Dan Iikes (the) sun and (good) weather.So summer is the best season for him. 2 Mary is the youngest of aII
the students in the cIassroom.3 MhaIes are the biggest animaIs in the sea.4 JiII is IittIe more stubborn than Peter.5 I don't Jike Iizards They're the ugliest animaIs on pIanet ! 6 Si . Petersborg isn't as expensive as Moscom.7 Marina is as bossy as his brother.