单项选择题

- Heto Beijing ten times in 199- So he must have coveredof it.

A．went; much
B．had; a lot
C．was going; some
D．had gone; many

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单项选择题I ve never been to Lijiang, but it s the place______.

单项选择题______evidence that language acquiring ability must be developed through practice.

- He______to Beijing ten times in 199- So he must have covered______of it.