题目内容

Bill shakes his head to mean he doesn’t knowShelley. ()

A. 对
B. 错

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Michael waves his hand at Shelley and greetsher. ()

A. 对
B. 错

Shelley is puzzled when Michael waves his hand at her. ()

A. 对
B. 错

Bill greets Shelley first. ( )

A. 对
B. 错

Finally the three of them walk towards the teaching building. ()

A. 对
B. 错

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