问题
选择题
Andrew was afraid to fill the room with water again, so he __________ the pipe carefully.
A．put on
B．put out
C．put in
D．put off
答案
答案：C
题目分析：句意：Andrew害怕将房间再次弄满水，所以他小心地放水管。. put on 穿上，上演； put out 扑灭，熄灭； put in 放入；put off推迟，扔掉，故选C。
考点: 考查动词短语的用法。