Здесь нужно в правильном порядке расставить определения.
По данным сайта dictionary.cambridge.org прилагательные должны стоять в таком порядке:
opinionsize (ex. big, small, tall) (Sz)physical quality (ex. thin, rough, untidy) (P)shape (ex. round, square) (S)agecolour (C)origin (German, Russian)material (M)type (ex. general-purpose, four-sided) (T)purpose (ex. cleaning, cooking)РешениеТ.о.:
It's a yellow (C) smart (T) radio.They're tight (P) leather (M) trousers.It's a baggy (S) flowery (C) top.They're spotty (C) wool (M) socks.They're long (Sz) stripy (C) trousers.It's a warm (P) furry (M) fleece.1. -You are going to do anything next weekend?
- Yes, my nephews are coming and I am going to show them round London.
- You are taking them to the theatre? (Have you booked seats?)
- No, they’re too young for that. I am going to take them to the zoo.
2. - We are starting early tomorrow. We are going to Ben Nevis.
- You are going to climb Ben Nevis?
- Not me. Tom is climbing it. I am going to sit at the bottom and do some sketching.
Насколько я знаю, going to употребляется при личном намерении что-то сделать, а Present Continuous, когда это намерение запланировано (договорённость с кем-либо или покупка билетов). Насчёт последнего предложения у меня сомнения, так что подумай.