Hello,<br/><br/>I know that you should not use<br/><br/>Waving to his friends, his mind was already elsewhere.<br/><br/>It should be Waving to his friends, he picked up his tool set.<br/><br/>So, what about this?<br/><br/>The relationship between Iran and the U.S. soured, suggesting that the upcoming negotiations will not be easy.<br/><br/>This sentence is passive, and "suggesting" is referring to the the souring of the relationship.<br/><br/>Is this ok?<br/><br/>What about this?<br/><br/>The hills were covered with snow, suggesting that skiing will be good tomorrow.<br/><br/>thanks.