【正确答案】1. I never sign a letter before Ihave read it through
2.I often choose to write although a phone call is quicker.
3.I usually telephone in order to save time.
4.Please check my in-tray while I am away at the conference.
5.I shall be able to confirm this after I have checked our stock position.
6.I shall be able to confirm this when I have consulted our works manager.
7.We cannot confirm the order until we have checked our stock position.
8.Please reply at once so that we can order the supplies we need.
9.Please reply as soon as possible because we do not have sufficient stocks.