Susan is not at the meeting. She has been absent ______ our meeting for several times.

A．18.
B．24.
C．22.
D．21.

A．They are colleagues.
B．They are friends.
C．They are twins.
D．They are classmates.

A．She is a guide.
B．She is a nurse.
C．She is a teacher.
D．She is a writer.