--I’m really thirsty. Do you think this water is safe ______? --Ask the farmer over there.

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问题 --I’m really thirsty. Do you think this water is safe ______?     --Ask the farmer over there.

选项 A、to drink
B、to be drunk
C、to drink it
D、to have it drunk

答案A

解析 电于drink前有主语this water,所以后面不用it。这里用动词不定式的主动形式表示被动,所以本题的正确答案选A。[拓展]形容词后接不定式作状语时,常用主动形式表被动意义。此类形容词有easy, hard, difficult, cheap, expensive, fit, nice, good, funny, exciting, light, heavy, dangerous, comfortable, delicious等。动词是不及物动词时要加相应的介词。例:The stone is comfortable to sit on.这块石头坐起来很舒服。
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