You've got to be very careful. The medicine is ______ if taken i

You've got to be very careful. The medicine is ______ if taken in large quantities.(poison)
【正确答案】：poisonous
【题目解析】：译文：你得非常小心，如果大量服药的话，药就有毒了。这里缺形容词作表语。poison的形容词形式为poisonous。答案为poisonous。