问题
选择题
A certain percent of your salary is ________ by the employer as insurance payments.
A．kept away
B．kept out
C．kept up
D．kept back
答案
答案：D
考查keep 的词组。 keep back留下，阻止 keep away远离，不接近 keep out阻止进入 keep up 坚持，继续 意为，你工资的一定比例被你的老板留下来用来支付你的保险。