单项选择题


Questions 23 to 25 are bused on the conversation you have just heard.

A．He has never seen a fossil that old.
B．It is probably a recent specimen.
C．It could be many millions of years old.
D．He will ask the lab how old it is.
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单项选择题
A．Reading magazine articles.B．Writing research papers.C．Reviewing book reports.D．Selecting information sources.
A．Reading magazine articles.
B．Writing research papers.
C．Reviewing book reports.
D．Selecting information sources.
单项选择题
A．They need to make more efforts.B．The others have done the greater part of it.C．They’ll have more work to do tomorrow.D．They’ve finished more than half of it.
A．They need to make more efforts.
B．The others have done the greater part of it.
C．They’ll have more work to do tomorrow.
D．They’ve finished more than half of it.
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