下面每个题划线部分中只有一个错误，请选出并改正。将其字母代号填入题前的括号内。
Most of themfinishedto do their homework before class was over.
A         B     C                   D
Although it is raininghard, but we still work. 
A       B   C            D
This watch ismuchmore cheap than that one.       
A   B      C                 D
It takesheforty minutes to do his homework every day.
A    B   C                  D
Learn Englishwellis very important for us.
A       B    C                 D