The milu deer is ___ deer that ___ common in China long ago.
A.kinds of, used to be | B.a kind of, used to be | C.a kind of, to be used | D.all kinds of , to used be |
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The milu deer is ___ deer that ___ common in China long ago.
A.kinds of, used to be | B.a kind of, used to be | C.a kind of, to be used | D.all kinds of , to used be |