They used various techniques to do this, and several mentioned their efforts to identify, evaluate, and implement new, more effective tools as they become available.
They used many different ways as tools became available.
They used the same techniques and the same tools.
I have never even heard of Exxon.
That is what I think.
The lead hockey player whirled his stick high in the air, propelling the hockey puck past the two defenders and into the back of the goal.
There is a window on the plane.
The female outfielder prepares to throw to an infielder at first base.
A lone person sweeps the stage after the performance is over and everyone has gone home.