Question

选词填空

on/at/to

(1)You’d be crazy to risk your money ________ an investment like that!

(2)People with fair skins are more ________ risk of skin cancer．

(3)Polluted water supplies are a risk ________ public health．

Answer 1

答案：on;at;to
解析：

(1)risk…on在……上冒风险。 　　(2)at risk of在某方面有……风险。 　　(3)a risk to对……有危险。