we will visit Australia next year ___we havewe will visit Australia next year ___we have enough time and money.A lest B tillC provided Dunless请问选哪个?并解释原因.
问题描述：
we will visit Australia next year ___we have
we will visit Australia next year ___we have enough time and money.A lest B tillC provided Dunless请问选哪个?并解释原因.
答
C
provided 假如
till 直到
unless 除非