13. In Britain people _______ four million tons of potatoes every year.  
    A. swallow   B. dispose   C. consume   D. exhaust

swallow  吞咽，吞食
swallows  燕子
gulp  吞吃
sway  摆动
sword  剑
sweep  打扫
weep  哭泣
swing  摇动，摆动

dispose  处理，使愿意
be disposed to do  愿意做某事
at your disposal  随时愿意为您服务
disposition  气质，性情