My boss asked me to answer the phone, to take all messages, and ______ some letters.

A．Bills of a family should be paid by men and not by women.
B．Women should do the housework for men.
C．Men hold the important positions in office.
D．Women enjoy equality with men in every aspect of life.

Many a student ______ the importance of learning a foreign language well at school.A) have realized B) has realizedC) have been realized 13) has been realized