单项选择题

A．Light speed is millions of times faster than sound speed.
B．Light speed is a million times slower than sound speed.
C．Light speed is about millions of times faster than sound speed.
D．Light speed is about a million times faster than sound speed.
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单项选择题
A．Sad.B．Relieved.C．Sarcastic.D．Apologetic.
A．Sad.
B．Relieved.
C．Sarcastic.
D．Apologetic.
单项选择题
A．American farmers travels from a village to his fields each morning.B．American farmers have more money.C．Each American farmer family lives quite far from any neighbors.D．American farmers don’t like to leave their fields.
A．American farmers travels from a village to his fields each morning.
B．American farmers have more money.
C．Each American farmer family lives quite far from any neighbors.
D．American farmers don’t like to leave their fields.
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