He is a student of ___ .
A. Class First B. the Class One C. Class One D. First Class
My father served in the army in _______ when he was in _____.
A. 1950’s; twenties B. the 1950s; his twenties
C. the 1950’s; the twenties D. 1950’s; the twenties
When he moved to Germany in _______, he was already in _______.
A. the fifties, his sixty B. fifties, his sixties
C. the fifties, his sixties D. fifty, sixty
She did it ________ it took me.
A. one third the time B. the one-third time C. one-third a time D. a one-third time
—There is no spare chair in the meeting room .Do you still need any?
—Yeah ,I think four chairs are needed for the lecture this afternoon.
A. dozen B. dozens C. dozen of D. dozens of
After eggs were found containing toxic chemical melamine（三聚氰胺） , the price of which is discounted ________ it was before.
A. half as many as B. as half as many
C. as half much as D. half as much as
