(2013·高考湖南卷) warm at night，I would fill the woodstove，then set my alarm clock for midnight so I could refill it.
A. Staying
B. Stayed
C. To stay
D. Stay
网友回答
A. Staying
B. Stayed
C. To stay
D. Stay
解析：选C。题干的意思是：“晚上为了取暖，我会填满柴炉，然后为闹钟定时以便半夜里能起来再添一次。”根据语境可知此处用动词不定式作目的状语，故答案为C。为了突出目的，通常把目的状语置于句首。