[参考答案]
1—5：CBACA 6—10：DBCDB 11—16：CDBADD
17．13 18．service 19．interest 20．exchange 21．Next Monday
22．population 23．copy 24．略
25—30：ADCCAD 31—35：CCBBD 36—40：BAADD
41—45：BDBCD 46—50：CDABC 51—55：DBAAD
56—60：CDCBA 61—65：ADBAB 66—70：AADAB
71—75：DDBAC 76—80：CBBCD 81—84：EFAB
1．The day before yesterday we ordered twenty washing .
2．Because of heavy rain, school sports meeting will be off.
3．For the happiness of your family, Do obey traffic rules.
4．略
5．working with gardeners enables us to learn a lot knowledge.

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