根据记载,亚历山大东征时最远到达过印度恒河流域。()
A. 对
B. 错
An _________(tidy)desk is perhaps a sign that you are very unorganized.
Most office etiquette is ____________(write),but this does not mean you should ignore it.
If you need to discuss a private matter with a colleague, make sure nobody else can _______________(hear) you.