Bill was doing a lot of physical exercise to build up his_________.

I’m sorry I’m forgetting your name for＿＿＿＿＿．

Never judge a man by his _____ alone — you might be fooled by what he looks like. 

We need to work faster because time is _____.

The traditional approach __________ with complex problems is to break them down into smaller，more easily managed problems.