单项选择题

This article is primarily about ______.

A．growing indoor plants
B．growing tropical plants
C．making containers for plants
D．choosing appropriate containers for indoor plants
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单项选择题
It is believed that plants need ______.
A．extra water
B．more sunlight
C．more nutrient
D．enough warmth
单项选择题
According to the passage, it is true that ______.
A．vegetables are easier to grow than flowering plants
B．the growth of indoor plants can be adjusted by adequate light and temperature
C．most indoor plants live from three to five years
D．plants growing indoors need little care
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