Some people waste a lot of food ____ others haven't enough to eat.A．onceB．whenC．_刷题宝

题干

Some people waste a lot of food ____ others haven't enough to eat.

A．once

B．when

C．as

D．while

上一题下一题 0.64难度单项选择更新时间:2013-07-22 06:16:31

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