单项选择题
[听力原文] W: When can the doctor see me M: He won’t be free until tomorrow.
A．The doctor won’t see her today. B．The doctor will see her today. C．The doctor will be busy tomorrow. D．The doctor is busy all day today.
A．$116 B．$150 C．$115 D．$126
A．Do-it-yourself burglar systems are not as effective as those professionally installed. B．Burglars alarm systems for home use have just recently been made available. C．There are more burglar alarm systems in homes today than there were a few years ago. D．Burglar alarm systems for the home will not prevent entry by a professional burglar.