问题

Was it because of the heavysnowstorm in Europe _______ the flight had to be put off

A:unless
B:so that
C:even if
D:on conditionthat

正确答案是：

同类题型

It was so dark in the cinema that I could hardly _____ my friend. [ ]

Which is your favourite drink, juice, water or milk-Thanks, but I’m sorry I like ________ of them. I like coffee most.

下列文学文化常识的阐释中不正确的一项是（）

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