The murderer was brought in, with his hands _________behind his back. 

 With him ______ the way, we had little trouble finding the school.

Many strange new means of transport have been developed in our century, the strangest of _______ being perhaps the hovercraft(气垫船).

It was a pity that the great scientist died      his research unfinished. 

With their reputation _______ , food companies need to_______ their image.