In order to catch up with her classmates, .A．a lot of books were bought by Mary’
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In order to catch up with her classmates, _____.
| A．a lot of books were bought by Mary’s mother |
| B．Mary’s father helped her with her lessons |
| C．Mary worked hard at her lessons around the clock |
| D．Mary’s classmates helped her a lot |
试题答案
C
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