参考答案
1-5 BBCBA 6-10 ABCAB 11-15 ACCBC
16-20 ABCAB 21-25BACDB 26-30DBACD
31-35 CDDCB 36-40 CADBA 41-45DDCAC
46-50 DC BD 51-55ABBCD 56-60 DBACB
61-65 is; an; to know; well; for
66-70 healthy; subjects; his; because; finishes
71-75 DBEFC
76:It'sa notebook.
77. He likes pears.
78. How much are the shoes
79. Because she thinks it's relaxing.
80、When is your science class {#{QQABKYwEogAgAgAAABhCQQnaCkMQkBGCCAoOAEAIsAAAQBFABCA=}#}
{#{QQABKYwEogAgAgAAABhCQQnaCkMQkBGCCAoOAEAIsAAAQBFABCA=}#}
{#{QQABKYwEogAgAgAAABhCQQnaCkMQkBGCCAoOAEAIsAAAQBFABCA=}#}
{#{QQABKYwEogAgAgAAABhCQQnaCkMQkBGCCAoOAEAIsAAAQBFABCA=}#}
{#{QQABKYwEogAgAgAAABhCQQnaCkMQkBGCCAoOAEAIsAAAQBFABCA=}#}
{#{QQABKYwEogAgAgAAABhCQQnaCkMQkBGCCAoOAEAIsAAAQBFABCA=}#}
{#{QQABKYwEogAgAgAAABhCQQnaCkMQkBGCCAoOAEAIsAAAQBFABCA=}#}
{#{QQABKYwEogAgAgAAABhCQQnaCkMQkBGCCAoOAEAIsAAAQBFABCA=}#}
{#{QQABKYwEogAgAgAAABhCQQnaCkMQkBGCCAoOAEAIsAAAQBFABCA=}#}
{#{QQABKYwEogAgAgAAABhCQQnaCkMQkBGCCAoOAEAIsAAAQBFABCA=}#}