单选题：I am very grateful to you for your assistance.A) helpfulB)

题目内容：

I am very grateful to you for your assistance.
A) helpful
B) hopeful
C) pitiful
D) thankful

参考答案：

答案解析：

第63题答案：

第63题答案：A．come B．leave C．go D．arrive

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第54题答案：A．drug B．diet C．recovery D．diagnosis

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Approximately how many drinks do the highest-intake group average per day?A．3 dr

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This building is harmonious and no building is over six-storey high.A．home B．sk

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You must try to wipe out the memory of these horrible events.A．strange B．terrib

分类：卫生类题型：单选题