You can arrive in Beijing earlier for the meeting ______ you don't mind taking the night train．

A．provided

B．unless

C．though

D．until

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参考答案

A。如果你不介意乘坐晚上的火车，你就可以早点到达北京参加会议。
考查状语从句。四个选项均可以引导状语从句，但是此处显然为一个表示条件的状语从句，所以 provided最为合适。unless(除非)，though(虽然)，until(直到)均不对。

1 I will give this dictionary to ________wants to have it．

A．whomever

B．someone

C．whoever

D．anyone

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2 Living in the central Australian desert has its problems, ______obtaining water is not the least．

A．of which

B．for what

C．as

D．whose

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3 It is better to die on one's feet than ________

A．living on one's knees

B．live on one's knees

C．on one's knees

D．to live on one's knees

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