Before it was dark, the sinking boat was______.A．unloadedB．explodedC．abandonedD．destroyed

The deal ______ before it was signed and sealed, even after the Letter of Intent was drawn

This was before the steam locomotive, and canal building was at its height. The companies

It was essential that all the equipment______back before the factory went into operation.A

Yesterday I had a hard day and it was already dark______I left the laboratory.A．by the tim

It was not until dark he found he thought was the correct way to solve the problem.A．that；whatB．that

It was unfortunate that after so trouble-free an arrival he should stumble in the dark a