My sister is a student and 1________her free time she works 2___

My sister is a student and 1________her free time she works 2________ a tourist guide. She 3________ groups of tourists 4________ the university in Oxford. She doesn’t work from Monday to Thursday 5________she does a lot of work 6________the weekend. “I 7________ my job. I 8________ lots of nice people. 9________ I don’t like it when it 10________!”

A.around

B.at

C.on

正确答案是A