The flowers his friend gave him will die unless every day. [ ] A.watered B.water
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![The flowers his friend gave him will die unless every day. [ ] A.watered B.water](/pic/43_942256.jpg)
The flowers his friend gave him will die unless ________ every day.
[]A.watered
B.watering
C.water
D.to water
试题答案
答案:A
解析:unless watered=unless they are watered, flowers与water之间为被动关系.