1-5:C;D;D;C;A
6-10:B;A;C;A;D
11-15:B;A;D;C;C
16-20:D;A;B;C;A
21-25:B;C;C;D;A
26-30:D;C;B;B;A
31、got 32、front 33、another 34、asked 35、side
36、street 37、clean 38、opened 39、full 40、under
41、略