答案：1—20 BABAB   CBACB    CACCA    CABAB   

21—25 CDADD  26—30 CCDBC  31—35 BDABB

36－40  ACADB  41－45 CDBCA          46－50    CDABA  51－55 BCDBD

56—59 ABDC   60—62 ADC  63—66 DBCC  67—70 CDAB   71—75 DEACF

短文改错

Dear Jack,

I am Li Hua, one of your student in China. It's a month since you left us. We all

                     students                

miss you and are very grateful for what you did it for us.

                                  去掉

We are still very busy . We had the English speech contest the another day. I won

                          an                       other