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12．This is the hotel_______ last weekend．（　　）

	A．	which they stayed		B．	where they stayed
	C．	at that they stayed		D．	where they stayed at

分析這就是它們上個周末呆的旅館．

解答答案是B．本題考查定語從句；從句以the hotel為先行詞，將先行詞the hotel帶入到定語從句，完整的定語從句是"they stayed at the hotel last weekend"；可見介詞短語at the hotel 在從句中充當地點狀語，故用關系副詞where或at which；A項缺介詞at；C項中錯在that引導的定語從句不能放在介詞后，可以換用which；D項中介詞at后面缺少賓語，不能用where；可以去掉at或將where改為which．故選B．

點評選擇定語從句中的關系詞，首先要理解各關系詞的用法；然后找準先行詞，將先行詞帶入到定語從句；最后根據先行詞在定語從句中的作用判斷關系詞．

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