单选题：You have to be patient if you want to sustain your position．

题目内容：

You have to be patient if you want to sustain your position． A．maintain
B．establish
C．acquire
D．support

参考答案：

答案解析：

The room is dim and quiet．

The room is dim and quiet．A．tiny B．pleasant C．dark D．agreeable

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Which of the following is NOT a landmark?（　　）A．A long river B．A high mountain C．

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根据下列文章,请回答题。Good WritingLike fine food。good writing is something we approach wit

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