【C5】______
A. such as
B. that is
C. for example
D. that is to say
A.To make an appointment.B.To confirm an appointment.C.To postpone an appointment.D.To
A. To make an appointment.
B. To confirm an appointment.
C. To postpone an appointment.
D. To cancel an appointment.
【C19】
A. through
B. like
C. by
D. as
In 1990, over 50 million Americans were working at the_______wages of any nation in the world.
A. high
B. highly
C. higher
D. highest