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 — Do you know          the Capital Museum?

— Next Friday．

A．when will they visit                      B．when they will visit

C．when did they visit                      D．when they visited

-Do you know ________the Capital Museum?

-Next Friday．

A．when will they visit                       B．when they will visit

C．when did they visit                                     D．when they visited

 — Do you know          the Capital Museum?

  — Next Friday．

A. when will they visit              B. when they will visit 

C. when did they visit                              D. when they visited