--- My parents have been to the United States.
--- Really? When _______there?
| A．will they go | B．did they go | C．had they gone | D．have they gone. |
相关试题
--- My parents have been to the United States.
--- Really? When _______there?
| A．will they go | B．did they go | C．had they gone | D．have they gone. |
music .
you .
in London .
on my birthday .
Beijing .
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