17 Complete the joke with the verbs in brackets in the correct form. Mother asked little Kate, «What ... your sister Mary (to do)?» «Well, if the ice is as thick as she thinks it is, she ... skate). But if the ice is as thin as I think, she ... (to swim)».

Відповідь:What does your sister Mary do

Well, if the ice is as thick as she thinks it is, she on skate

But if the ice is as thin as I think, she swiming

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