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20．On returning home，she found a note ________ to the door，________"Call in later．"（　　）

	A．	attaching； reading		B．	attaches； saying
	C．	attached； which reads		D．	attached； reading

分析一回到家，她發(fā)現門上附著一張便條，上面寫著，"過會再來"．

解答答案是D；本考查分詞；第一空填attached，這是過去分詞做賓語補足語，因為賓語a note和賓語補足語attach是被動關系，第二空填reading，是現在分詞做定語，意思note和read是主動關系，相當于定語從句which read；C 項第二空時態(tài)錯誤，故選D．

點評首先判斷選項中的動詞在句中是以謂語還是非謂語形式出現，然后根據選項在句中的功能結合非謂語的基本用法做出合理的判斷．要關注常見非謂語動詞的搭配．

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