Use the comparative of the words in brackets and the words (a bit / a little / much / a lot / fat). Besides, you should use than where necessary.
1) It’s today it was yesterday (a little / warm).
2) A. Did you enjoy your visit to the museum?
B. Yes, I found it I expected (far / interesting).
3) I prefer this armchair. It’s the other one (much / comfortable).
4) You looked depressed this morning but you look now (a bit / happy).
5) This flat is too small for me. I need something (much / big).
6) It’s to learn a foreign language in the country where it is spoken (a lot / easy).