Keys:
1-10 CABCB BADBC
11-20 DABAC BBADC
21-30 BDCBA DDADC
31-40 CBACB ACABB
41-50 BDCCB CBBDC
51-55 DCCCB
56. 删去 for 57. In-On 58. sit-sitting/seated 59. cry-crying 60. √
6l. 删去 had 62. (第二个)police 前加 the 63. this-that 64. near-nearly
65. 删去have
Sunday September 15
Fine
Today I went to the Fu&Nan Rivers as a young volunteer to clean the place. Early in the morning we started by bike. As soon
as we got there, we began to work. First we collected the rubbish on the river bank. Then we put up notices to tell people
to protect the environment. We kept on telling the visitors the importance of protecting the environment. Having cleaned
the river bank we said goodbye to the workers and went home. Though I was tired, I felt happy
