The old professor told us every part of thematerials should be made use of ______ the power station.

Since Tom downloaded a virus into his computer, he cannot open the file now.

Tony, do remember to send the report to the sales manager!—-___________.

The company has recently taken on fifty new workers some of_______ have just graduated from university.

The new road is much _______ than before. Six cars canpass it at the same time.