单项选择题

A．A complicated system of several food chains.
B．A society that distributes food.
C．The relationship of one green plant to another.
D．The device that spiders use to catch food.
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单项选择题
A．He believes it does one much good.B．He tells her it’s his treat..C．He suggests that she have it every night.D．He thinks it is healthy to her.
A．He believes it does one much good.
B．He tells her it’s his treat..
C．He suggests that she have it every night.
D．He thinks it is healthy to her.
单项选择题
A．QuotationsB．Inquiry.C．Quantity.D．Indication
A．Quotations
B．Inquiry.
C．Quantity.
D．Indication
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