—Which is the biggest number of the four?
—_________.
A．One-third B．Two-thirds
C．A half D．A quarter
Tomorrow is the boy’s ________ birthday.
A．seventh
B．seven
C．seventeen
The teacher said that__ of the boys would take part in the talent show.
A．three five B．three fives
C．thirds fifths D．three fifths
—How often do you exercise?
—_________.
A．Two
B．Twice
C．Second
About_______of the students in our class were born in the____.
A．two-thirds, 1990s
B．two-thirds, 1990
C．two-third, 1990s
Last year, I visited a chemical factory in Baise, there are about _____ workers in it.
A．six thousands B．six thousand
C．six thousands of D．six thousand of
