单项选择题

You can not see the manager ______ you have made an appointment with him.

A．if
B．except
C．unless
D．when
<上一题 目录 下一题>
热门 试题

单项选择题
This book is divided into sixteen units that deal with topics of everyday conversation.
A．本书共分为十六个单元，内容涉及日常生活会话。
B．十六个单元的内容解决了日常生活会话中的难题。
C．在十六个单元里包括的内容是日常生活会话。
D．本书由十六个单元构成，内容回答的是日常生活会话问题。
单项选择题
The reason ______ I can't come is that I am having a headache.
A．because
B．why
C．as
D．for
相关试题