题文
-----He’s never been to Canada before, _____? -----Sorry, I don’t know.
| A．is he | B．has he |
| C．isn’t he | D．hasn’t he |
-----He’s never been to Canada before, _____? -----Sorry, I don’t know.
| A．is he | B．has he |
| C．isn’t he | D．hasn’t he |
试题篮
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