单选题
How many children (realize) that agriculture is a (source) of raw (materials) for clothing and (to shelter)?
A、
realize
B、
source
C、
materials
D、
to shelter
【正确答案】
D
【答案解析】
将to shelter改为shelter; clothing和shelter是由and连接的两个名词形式。该句话的意思是，“多少孩子意识到了农业是衣(食)住(行)的原材料的资源呢?”
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