单项选择题

A．Why species don’t avoid extinction by adapting.
B．Why species become extinct at the rate they do.
C．Why humans aren’t extinct.
D．How many species aren’t extinct.
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单项选择题
A．Their packaging of exports have to conform to EU regulations.B．They have to cut out waste completely.C．They must have an experienced distributor.D．They will see expensive rise.
A．Their packaging of exports have to conform to EU regulations.
B．They have to cut out waste completely.
C．They must have an experienced distributor.
D．They will see expensive rise.
单项选择题
A．The man can have his pants at the end of the day.B．Cleaning the pants will take longer than usual.C．She doesn’t think the stain can be removed.D．The man should go to a different location.
A．The man can have his pants at the end of the day.
B．Cleaning the pants will take longer than usual.
C．She doesn’t think the stain can be removed.
D．The man should go to a different location.
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