members of a team perform better,the trainer first of all has to know their ______________ and weaknesses.

If you had joined the chat room ten minutes ago, you ______what we were talking about!

oft ended support for Windows XP after April 8, which _______a major operating system for some Chinese computer users, and advised users to upgrade to Windows 8.1.

You know, the weather is not very goodIs there any possibilitythe flight would be put off?

The weather being rainy, the school sports meet is _____ to be put off. [ ]