2. we could understand Colin although he spoke English quickly
3.The children were quietso their mother knew they were doing sth wrong 
6.Cuong is the most hard-working students in my class
7.if you drink too mi=uck coffe, you will be nervous
8.Big Ben is the most famuos tower in England
9.New York is the more modern than London
chấm điểm cho mik nhé