Dear Diana,

Thank you for the lovely day we have with you. It was so kind for you to let us bring Anne's friend, Gina. Unfortunate, the only problem was the journey home. There had been a terrible accident on the highway and, for a result, there was a long line of traffic for at least six mile. In the end, we drove to a service station and waited there unless the road was clear. In the car park here Gina nearly got knocked over as car drove out far too quickly from behind a lorry. They finally dropped Gina off at her parents' and made our own way to home.

Much love,

Fiona

【答案】

71.have--had

72.for--of 

73.Unfortunate-- Unfortunately

74.for--as

75.mile--miles 

76.unless--until 

77.here--there 

78.as后面加a

79.they--We

80.to去掉