The powdered milk was actually _____ when mixed with unclean wat

The powdered milk was actually _____ when mixed with unclean water.(danger)
【正确答案】：dangerous
【题目解析】：译文：奶粉和不干净的水混合时实际上是很危险的。这里句子缺少形容词作表语。把danger加形容词后缀-ous即可。答案为dangerous。