1.He is (clever).........student in my group. 2.She can't stay (long).............than 30 minutes. 3.It's ( good).................holiday I' ve had. 4.Well, the place looks (clean)...................now. 51..The red shirt is better but it's (expensive).................than the white one. 6.I'll try to finish the job (quick)................. 7.Being a firefighter is (dangerous)..............than being a builder. 8.Lan sings (sweet).....................than Hoa. 9.This is (exciting)......................film I' ve ever seen. 10.He runs (fast).....................of all. 11.My Tam is one of (popular)..........................singers in my country. 12.Which planet is (close)...............................to the Sun. 13.Carol sings as (beautiful)............................as Mary, but Cindy sings the (beautiful)......................... 14.The weather this summer is even (hot)....................................than last summer. 15.Your accent is (bad)......................................than mine. 16.Hot dogs are (good)..............................than hamburgers. 17.They live in a (big)...............................house, but Fred lives in a (big)..........................one. 18.French is considered to be (difficult).........................than English, but Chinese is the (difficult).........................language. 19.It's the (large)........................company in the country.