单项选择题

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

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单项选择题
He (was) (born) in a (small) village in (the year) 1970.（）

A．was
B．born
C．small
D．the year
单项选择题
Professor Baker recommended that we (are) present at the reception (this afternoon) in order (to meet) the representatives (from) the Fulbright Commission.（）

A．are
B．this afternoon
C．to meet
D．from
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