单项选择题

We'll visit Europe next year ______ we have enough money.

A．lest
B．until
C．unless
D．provided
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单项选择题
One of the wrong notions about science is that many scientific discoveries have come about ______.
A．accordingly
B．accidentally
C．artificially
D．additionally
单项选择题
His remarks left me ______ about his real purpose.
A．wondered
B．wonder
C．to wonder
D．wondering
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