高中英语数词+单位名称试题

Nearly________ of the surface of our planet is covered by water.

A．seven-ten

B．seven-tenth

C．seven-tenths

D．seventh-ten

About ____ of the teachers in our school ____ young people under thirty.

A．two-five, are

B．second-fifth, is

C．two-fifths, are

D．two-fifth, is